Campus Alert Archive
UCSD

Two sexual-battery reports at Matthews Quad; suspect in custody

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UC San Diego Police issued a community alert bulletin after a 5:32 p.m. sexual-battery report at Matthews Quad. An unknown suspect approached the reporting party and grabbed their buttocks. A second victim reported a similar incident minutes later. The notice states the suspect is in custody.

Alerts
1
Response
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Killed
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Injured
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Institution
University of California, San Diego
Public R1 · CA
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Triton Alert
Official alert policy
Read when and how UCSD says it will use Triton Alert: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

1 message in sequence · 1 verified verbatim

Confirmed wording is transcribed character-for-character from a primary source. Use Verify this quote under each message to open that source in a new tab and compare the text yourself.

INITIAL ALERTEmail
Verified verbatim3242 chars
UC SAN DIEGO POLICE DEPARTMENT May 28, 2025 ALL ACADEMICS, STAFF, AND STUDENTS AT UC SAN DIEGO Content Warning: This timely warning includes descriptions of sexual violence. This information is being shared so that you can make informed decisions about your safety. We encourage all community members to care for their needs and well-being while reading this message, especially those impacted by similar forms of violence. Contact information for campus support resources can be found at the end of this notice. Community Alert Bulletin–Sexual Battery (Suspect in custody) On 5/28/25 at 5:32 PM, the UC San Diego Police Department received a report that an individual was sexually battered by an unknown suspect at Matthews Quad. The reporting party stated that the suspect approached them and grabbed their buttocks. A second victim reported a similar incident occurred minutes later. The suspect is described by the victim as a male, 5'9", approximately 20 years old, with a medium build. At this time, the suspect is in custody. The report is currently under investigation by the UC San Diego Police Department. If you have any information about this incident or to report a similar incident, please call the UC San Diego Police Department at (858) 534-4357 or submit an online tip at https://police.ucsd.edu/services/anonymous.html. UC San Diego does not tolerate sexual assault, sexual batteries, sexual misconduct, relationship violence or sexual harassment. The remainder of this message provides general information about preventing and reporting a sexual battery or sexual assault is not necessarily related to this incident. If you are the victim of a sexual battery or sexual assault: Seek medical attention as needed. Report it to the UC San Diego Police Department immediately by calling 9-1-1. Consider contacting confidential campus support resources: UC San Diego students – visit Counseling and Psychological Services (CAPS): http://caps.ucsd.edu and (858) 534-3755. UC San Diego faculty and staff – visit Faculty & Staff Assistance Program (FSAP): http://blink.ucsd.edu/sponsor/hr/org-chart/fsap.html and (858) 534-5523. UC San Diego Health Sciences benefits-eligible faculty and staff – visit Liveandworkwell operated by Optum/United Behavioral Health: http://liveandworkwell.com and (866) 808-6205 (use company code UCSDMC). Sexual batteries and assaults are never the fault of the survivor and keeping UC San Diego safe is everyone’s responsibility. Ignorance of the law or of University policy is never a defense. You can help by trying to connect someone at risk with their friends or by calling a Community Service Officer (CSO) to escort that person home. Survivor Support & Other Resources Survivors of sexual violence are encouraged to seek confidential support at UC San Diego’s CARE at the Sexual Assault Resource Center (CARE at SARC). CARE advocates are available 24 hours a day at (858) 534-5793. Visit https://care.ucsd.edu. The Office for the Prevention of Harassment & Discrimination serves as the non-confidential Title IX office at UC San Diego. Reporting options can be found at https://ophd.ucsd.edu. University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093
Verify this quote
UC San Diego Campus Notices wiki: Community Alert Bulletin Sexual Battery (Suspect in custody) 05-28-2025 (Matthews Quad)ucsdcampusnotices.atlassian.netfind archived copies
Dual independent Confluence REST fetch 2026-08-24. CDATA html sha256 0dc47fcd00b935affe04ea2e8fc8fbd32dfd4e690170875b7dcb068c7629e204. Flattened from the embedded UCPD email body. Official content warning and 'Community Alert Bulletin–Sexual Battery' en-dash-glued title preserved. SPN save-sync HTTP 302.
Distinct from 2025-09-26-uc-san-diego-marshall-college-known-perpetrator-sexual-battery (later date, Marshall College acquaintance, not Matthews Quad) and from 2026-07-29-uc-san-diego-pepper-canyon-west-sexual-battery (later date, Pepper Canyon West).
Message elements

How the first alert is built

To check this alert, SuperGrok Heavy 4.5 (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

UC SAN DIEGO POLICE DEPARTMENT May 28, 2025 ALL ACADEMICS, STAFF, AND STUDENTS AT UC SAN DIEGO Content Warning: This timely warning includes descriptions of sexual violence. This information is being shared so that you can make informed decisions about your safety. We encourage all community members to care for their needs and well-being while reading this message, especially those impacted by similar forms of violence. Contact information for campus support resources can be found at the end of this notice. Community Alert Bulletin–Sexual Battery (Suspect in custody) On 5/28/25 at 5:32 PM, the UC San Diego Police Department received a report that an individual was sexually battered by an unknown suspect at Matthews Quad. The reporting party stated that the suspect approached them and grabbed their buttocks. A second victim reported a similar incident occurred minutes later. The suspect is described by the victim as a male, 5'9", approximately 20 years old, with a medium build. At this time, the suspect is in custody. The report is currently under investigation by the UC San Diego Police Department. If you have any information about this incident or to report a similar incident, please call the UC San Diego Police Department at (858) 534-4357 or submit an online tip at https://police.ucsd.edu/services/anonymous.html. UC San Diego does not tolerate sexual assault, sexual batteries, sexual misconduct, relationship violence or sexual harassment. The remainder of this message provides general information about preventing and reporting a sexual battery or sexual assault is not necessarily related to this incident. If you are the victim of a sexual battery or sexual assault: Seek medical attention as needed. Report it to the UC San Diego Police Department immediately by calling 9-1-1. Consider contacting confidential campus support resources: UC San Diego students – visit Counseling and Psychological Services (CAPS): http://caps.ucsd.edu and (858) 534-3755. UC San Diego faculty and staff – visit Faculty & Staff Assistance Program (FSAP): http://blink.ucsd.edu/sponsor/hr/org-chart/fsap.html and (858) 534-5523. UC San Diego Health Sciences benefits-eligible faculty and staff – visit Liveandworkwell operated by Optum/United Behavioral Health: http://liveandworkwell.com and (866) 808-6205 (use company code UCSDMC). Sexual batteries and assaults are never the fault of the survivor and keeping UC San Diego safe is everyone’s responsibility. Ignorance of the law or of University policy is never a defense. You can help by trying to connect someone at risk with their friends or by calling a Community Service Officer (CSO) to escort that person home. Survivor Support & Other Resources Survivors of sexual violence are encouraged to seek confidential support at UC San Diego’s CARE at the Sexual Assault Resource Center (CARE at SARC). CARE advocates are available 24 hours a day at (858) 534-5793. Visit https://care.ucsd.edu. The Office for the Prevention of Harassment & Discrimination serves as the non-confidential Title IX office at UC San Diego. Reporting options can be found at https://ophd.ucsd.edu. University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093

  • Sourcepresent25/25

    Final assessment

    UC SAN DIEGO POLICE DEPARTMENT is the branded sender.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: The deciding words are "UC SAN DIEGO POLICE DEPARTMENT", so this element is present.
    2. present: This read treats "UC SAN DIEGO POLICE DEPARTMENT" as enough to mark the element present.
    3. present: Quoted evidence "UC SAN DIEGO POLICE DEPARTMENT" is the specific language that carries the element.
    4. present: I mark present because the alert includes "UC SAN DIEGO POLICE DEPARTMENT".
    5. present: Presence follows from the phrase "UC SAN DIEGO POLICE DEPARTMENT" in the body.
    6. present: The message supplies "UC SAN DIEGO POLICE DEPARTMENT", which satisfies the element on this pass.
    7. present: On this independent read, "UC SAN DIEGO POLICE DEPARTMENT" is the hook that makes the element present.
    8. present: Element is present: the text itself contains "UC SAN DIEGO POLICE DEPARTMENT".
    9. present: A first-time reader would see "UC SAN DIEGO POLICE DEPARTMENT" and know the element is there.
    10. present: Coding present from the explicit wording "UC SAN DIEGO POLICE DEPARTMENT".
    11. present: The body names it with "UC SAN DIEGO POLICE DEPARTMENT", so the vote is present.
    12. present: This pass votes present on the strength of "UC SAN DIEGO POLICE DEPARTMENT".
    13. present: Because the alert says "UC SAN DIEGO POLICE DEPARTMENT", the element is not missing.
    14. present: The quoted span "UC SAN DIEGO POLICE DEPARTMENT" is sufficient and does not need outside knowledge.
    15. present: Present: "UC SAN DIEGO POLICE DEPARTMENT" is in the transmitted text.
    16. present: I am scoring present after locating "UC SAN DIEGO POLICE DEPARTMENT" in the message.
    17. present: The element is carried by "UC SAN DIEGO POLICE DEPARTMENT" rather than by implication alone.
    18. present: Direct language "UC SAN DIEGO POLICE DEPARTMENT" is what this pass uses for a present vote.
    19. present: Nothing in the rest of the text undoes "UC SAN DIEGO POLICE DEPARTMENT" as the present cue.
    20. present: This reviewer finds "UC SAN DIEGO POLICE DEPARTMENT" and therefore records present.
    21. present: The alert is not silent here: it has "UC SAN DIEGO POLICE DEPARTMENT".
    22. present: Present vote rests on the visible words "UC SAN DIEGO POLICE DEPARTMENT".
    23. present: From the four corners of the message, "UC SAN DIEGO POLICE DEPARTMENT" establishes the element.
    24. present: I quote "UC SAN DIEGO POLICE DEPARTMENT" as the sole basis for present on this pass.
    25. present: Independent judgment: "UC SAN DIEGO POLICE DEPARTMENT" is on the page, so present.
  • Hazardpresent25/25

    Final assessment

    sexually battered names a specific crime.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: The deciding words are "sexually battered", so this element is present.
    2. present: This read treats "sexually battered" as enough to mark the element present.
    3. present: Quoted evidence "sexually battered" is the specific language that carries the element.
    4. present: I mark present because the alert includes "sexually battered".
    5. present: Presence follows from the phrase "sexually battered" in the body.
    6. present: The message supplies "sexually battered", which satisfies the element on this pass.
    7. present: On this independent read, "sexually battered" is the hook that makes the element present.
    8. present: Element is present: the text itself contains "sexually battered".
    9. present: A first-time reader would see "sexually battered" and know the element is there.
    10. present: Coding present from the explicit wording "sexually battered".
    11. present: The body names it with "sexually battered", so the vote is present.
    12. present: This pass votes present on the strength of "sexually battered".
    13. present: Because the alert says "sexually battered", the element is not missing.
    14. present: The quoted span "sexually battered" is sufficient and does not need outside knowledge.
    15. present: Present: "sexually battered" is in the transmitted text.
    16. present: I am scoring present after locating "sexually battered" in the message.
    17. present: The element is carried by "sexually battered" rather than by implication alone.
    18. present: Direct language "sexually battered" is what this pass uses for a present vote.
    19. present: Nothing in the rest of the text undoes "sexually battered" as the present cue.
    20. present: This reviewer finds "sexually battered" and therefore records present.
    21. present: The alert is not silent here: it has "sexually battered".
    22. present: Present vote rests on the visible words "sexually battered".
    23. present: From the four corners of the message, "sexually battered" establishes the element.
    24. present: I quote "sexually battered" as the sole basis for present on this pass.
    25. present: Independent judgment: "sexually battered" is on the page, so present.
  • Locationpresent25/25

    Final assessment

    Matthews Quad is a named place on campus.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: The deciding words are "Matthews Quad", so this element is present.
    2. present: This read treats "Matthews Quad" as enough to mark the element present.
    3. present: Quoted evidence "Matthews Quad" is the specific language that carries the element.
    4. present: I mark present because the alert includes "Matthews Quad".
    5. present: Presence follows from the phrase "Matthews Quad" in the body.
    6. present: The message supplies "Matthews Quad", which satisfies the element on this pass.
    7. present: On this independent read, "Matthews Quad" is the hook that makes the element present.
    8. present: Element is present: the text itself contains "Matthews Quad".
    9. present: A first-time reader would see "Matthews Quad" and know the element is there.
    10. present: Coding present from the explicit wording "Matthews Quad".
    11. present: The body names it with "Matthews Quad", so the vote is present.
    12. present: This pass votes present on the strength of "Matthews Quad".
    13. present: Because the alert says "Matthews Quad", the element is not missing.
    14. present: The quoted span "Matthews Quad" is sufficient and does not need outside knowledge.
    15. present: Present: "Matthews Quad" is in the transmitted text.
    16. present: I am scoring present after locating "Matthews Quad" in the message.
    17. present: The element is carried by "Matthews Quad" rather than by implication alone.
    18. present: Direct language "Matthews Quad" is what this pass uses for a present vote.
    19. present: Nothing in the rest of the text undoes "Matthews Quad" as the present cue.
    20. present: This reviewer finds "Matthews Quad" and therefore records present.
    21. present: The alert is not silent here: it has "Matthews Quad".
    22. present: Present vote rests on the visible words "Matthews Quad".
    23. present: From the four corners of the message, "Matthews Quad" establishes the element.
    24. present: I quote "Matthews Quad" as the sole basis for present on this pass.
    25. present: Independent judgment: "Matthews Quad" is on the page, so present.
  • Guidancepresent25/25

    Final assessment

    Readers with information are told to call police.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. present: The deciding words are "please call the UC San Diego Police Department", so this element is present.
    2. present: This read treats "please call the UC San Diego Police Department" as enough to mark the element present.
    3. present: Quoted evidence "please call the UC San Diego Police Department" is the specific language that carries the element.
    4. present: I mark present because the alert includes "please call the UC San Diego Police Department".
    5. present: Presence follows from the phrase "please call the UC San Diego Police Department" in the body.
    6. present: The message supplies "please call the UC San Diego Police Department", which satisfies the element on this pass.
    7. present: On this independent read, "please call the UC San Diego Police Department" is the hook that makes the element present.
    8. present: Element is present: the text itself contains "please call the UC San Diego Police Department".
    9. present: A first-time reader would see "please call the UC San Diego Police Department" and know the element is there.
    10. present: Coding present from the explicit wording "please call the UC San Diego Police Department".
    11. present: The body names it with "please call the UC San Diego Police Department", so the vote is present.
    12. present: This pass votes present on the strength of "please call the UC San Diego Police Department".
    13. present: Because the alert says "please call the UC San Diego Police Department", the element is not missing.
    14. present: The quoted span "please call the UC San Diego Police Department" is sufficient and does not need outside knowledge.
    15. present: Present: "please call the UC San Diego Police Department" is in the transmitted text.
    16. present: I am scoring present after locating "please call the UC San Diego Police Department" in the message.
    17. present: The element is carried by "please call the UC San Diego Police Department" rather than by implication alone.
    18. present: Direct language "please call the UC San Diego Police Department" is what this pass uses for a present vote.
    19. present: Nothing in the rest of the text undoes "please call the UC San Diego Police Department" as the present cue.
    20. present: This reviewer finds "please call the UC San Diego Police Department" and therefore records present.
    21. present: The alert is not silent here: it has "please call the UC San Diego Police Department".
    22. present: Present vote rests on the visible words "please call the UC San Diego Police Department".
    23. present: From the four corners of the message, "please call the UC San Diego Police Department" establishes the element.
    24. present: I quote "please call the UC San Diego Police Department" as the sole basis for present on this pass.
    25. present: Independent judgment: "please call the UC San Diego Police Department" is on the page, so present.
  • Timepresent25/25

    Final assessment

    On 5/28/25 at 5:32 PM is an explicit clock time and date.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. present: The deciding words are "On 5/28/25 at 5:32 PM", so this element is present.
    2. present: This read treats "On 5/28/25 at 5:32 PM" as enough to mark the element present.
    3. present: Quoted evidence "On 5/28/25 at 5:32 PM" is the specific language that carries the element.
    4. present: I mark present because the alert includes "On 5/28/25 at 5:32 PM".
    5. present: Presence follows from the phrase "On 5/28/25 at 5:32 PM" in the body.
    6. present: The message supplies "On 5/28/25 at 5:32 PM", which satisfies the element on this pass.
    7. present: On this independent read, "On 5/28/25 at 5:32 PM" is the hook that makes the element present.
    8. present: Element is present: the text itself contains "On 5/28/25 at 5:32 PM".
    9. present: A first-time reader would see "On 5/28/25 at 5:32 PM" and know the element is there.
    10. present: Coding present from the explicit wording "On 5/28/25 at 5:32 PM".
    11. present: The body names it with "On 5/28/25 at 5:32 PM", so the vote is present.
    12. present: This pass votes present on the strength of "On 5/28/25 at 5:32 PM".
    13. present: Because the alert says "On 5/28/25 at 5:32 PM", the element is not missing.
    14. present: The quoted span "On 5/28/25 at 5:32 PM" is sufficient and does not need outside knowledge.
    15. present: Present: "On 5/28/25 at 5:32 PM" is in the transmitted text.
    16. present: I am scoring present after locating "On 5/28/25 at 5:32 PM" in the message.
    17. present: The element is carried by "On 5/28/25 at 5:32 PM" rather than by implication alone.
    18. present: Direct language "On 5/28/25 at 5:32 PM" is what this pass uses for a present vote.
    19. present: Nothing in the rest of the text undoes "On 5/28/25 at 5:32 PM" as the present cue.
    20. present: This reviewer finds "On 5/28/25 at 5:32 PM" and therefore records present.
    21. present: The alert is not silent here: it has "On 5/28/25 at 5:32 PM".
    22. present: Present vote rests on the visible words "On 5/28/25 at 5:32 PM".
    23. present: From the four corners of the message, "On 5/28/25 at 5:32 PM" establishes the element.
    24. present: I quote "On 5/28/25 at 5:32 PM" as the sole basis for present on this pass.
    25. present: Independent judgment: "On 5/28/25 at 5:32 PM" is on the page, so present.
  • Impactpresent25/25

    Final assessment

    grabbed their buttocks states a completed sexual battery.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. present: The deciding words are "grabbed their buttocks", so this element is present.
    2. present: This read treats "grabbed their buttocks" as enough to mark the element present.
    3. present: Quoted evidence "grabbed their buttocks" is the specific language that carries the element.
    4. present: I mark present because the alert includes "grabbed their buttocks".
    5. present: Presence follows from the phrase "grabbed their buttocks" in the body.
    6. present: The message supplies "grabbed their buttocks", which satisfies the element on this pass.
    7. present: On this independent read, "grabbed their buttocks" is the hook that makes the element present.
    8. present: Element is present: the text itself contains "grabbed their buttocks".
    9. present: A first-time reader would see "grabbed their buttocks" and know the element is there.
    10. present: Coding present from the explicit wording "grabbed their buttocks".
    11. present: The body names it with "grabbed their buttocks", so the vote is present.
    12. present: This pass votes present on the strength of "grabbed their buttocks".
    13. present: Because the alert says "grabbed their buttocks", the element is not missing.
    14. present: The quoted span "grabbed their buttocks" is sufficient and does not need outside knowledge.
    15. present: Present: "grabbed their buttocks" is in the transmitted text.
    16. present: I am scoring present after locating "grabbed their buttocks" in the message.
    17. present: The element is carried by "grabbed their buttocks" rather than by implication alone.
    18. present: Direct language "grabbed their buttocks" is what this pass uses for a present vote.
    19. present: Nothing in the rest of the text undoes "grabbed their buttocks" as the present cue.
    20. present: This reviewer finds "grabbed their buttocks" and therefore records present.
    21. present: The alert is not silent here: it has "grabbed their buttocks".
    22. present: Present vote rests on the visible words "grabbed their buttocks".
    23. present: From the four corners of the message, "grabbed their buttocks" establishes the element.
    24. present: I quote "grabbed their buttocks" as the sole basis for present on this pass.
    25. present: Independent judgment: "grabbed their buttocks" is on the page, so present.

Coded by SuperGrok Heavy 4.5

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

UC San Diego Police posted the notice on the Campus Notices wiki, linked from police.ucsd.edu/alerts/warnings.html. The body labels itself a timely warning despite the Community Alert Bulletin header.
Analysis

Key Findings

Two sexual-battery reports minutes apart at Matthews Quad. Suspect approached and grabbed the reporting party's buttocks.
Suspect described as a male, 5-foot-9, about 20, medium build. In custody.
Outcome
Suspect in custody.
Provenance

Sources

Every claim on this page is meant to be checkable. Open the links below (and the Verify this quote control under each confirmed alert) to read the original university, news, or archive page yourself. Hostnames are shown so you can see where you are going; archived copies survive when live pages move or disappear. See also our methodology.

  1. Official
    Community Alert Bulletin–Sexual Battery (Suspect in custody) - 05-28-2025
    ucsdcampusnotices.atlassian.net
    archived copy
Cite this case

Campus Alert Archive. "University of California, San Diego: Two sexual-battery reports at Matthews Quad; suspect in custody." Incident of May 28, 2025. Added August 2026. https://campusalertarchive.com/case/uc-san-diego-matthews-quad-sexual-battery-2025-05-28/

Download case JSON

Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
public-r1californiaucsdsexual-assaulttimely-warning2025
Added August 2026Updated August 2026Via ingestion