Campus Alert Archive
UC Berkeley

Attempted sexual assault in a residence hall; suspect in custody

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CAsexual offensetimely warninghigh confidence
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On June 13, 2026, UCPD reported an attempted sexual assault in a residence hall reported around 2 a.m.. A follow-up community advisory stated the suspect was in custody and the investigation was ongoing.

Alerts
2
Response
—
Killed
0
Injured
0
Institution
University of California, Berkeley
Public R1 · CA
All UC Berkeley cases →
~45,000 studentsUCPD / WarnMe
Official alert policy
Read when and how UC Berkeley says it will use WarnMe: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

2 messages in sequence · 2 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 ALERTTwitter/X
Verified verbatim149 chars
On 6/13/26, an attempted sexual assault occurred in a residence hall. The incident was reported to UCPD at approximately 2 AM. UCPD is investigating.
Verify this quote
@UCPD_Cal on X (official UC Berkeley Police)x.comfind archived copies
Full text from official @UCPD_Cal X post.
UPDATETwitter/X+14h 58m
Verified verbatim144 chars
Community Advisory: Update on the sexual assault that occurred in a residence hall. The suspect is in custody, and the investigation is ongoing.
Verify this quote
@UCPD_Cal on X (community advisory update)x.comfind archived copies
Full text from official @UCPD_Cal X post.
Message elements

How the first alert is built

To check this alert, Claude (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.

On 6/13/26, an attempted sexual assault occurred in a residence hall. The incident was reported to UCPD at approximately 2 AM. UCPD is investigating.

  • Sourcepresent25/25

    Final assessment

    Majority finds s present: UCPD named.

    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: Element S present: UCPD named. Independent coding pass 1.
    2. present: Element S present: UCPD named. Independent coding pass 2.
    3. present: Element S present: UCPD named. Independent coding pass 3.
    4. present: Element S present: UCPD named. Independent coding pass 4.
    5. present: Element S present: UCPD named. Independent coding pass 5.
    6. present: Element S present: UCPD named. Independent coding pass 6.
    7. present: Element S present: UCPD named. Independent coding pass 7.
    8. present: Element S present: UCPD named. Independent coding pass 8.
    9. present: Element S present: UCPD named. Independent coding pass 9.
    10. present: Element S present: UCPD named. Independent coding pass 10.
    11. present: Element S present: UCPD named. Independent coding pass 11.
    12. present: Element S present: UCPD named. Independent coding pass 12.
    13. present: Element S present: UCPD named. Independent coding pass 13.
    14. present: Element S present: UCPD named. Independent coding pass 14.
    15. present: Element S present: UCPD named. Independent coding pass 15.
    16. present: Element S present: UCPD named. Independent coding pass 16.
    17. present: Element S present: UCPD named. Independent coding pass 17.
    18. present: Element S present: UCPD named. Independent coding pass 18.
    19. present: Element S present: UCPD named. Independent coding pass 19.
    20. present: Element S present: UCPD named. Independent coding pass 20.
    21. present: Element S present: UCPD named. Independent coding pass 21.
    22. present: Element S present: UCPD named. Independent coding pass 22.
    23. present: Element S present: UCPD named. Independent coding pass 23.
    24. present: Element S present: UCPD named. Independent coding pass 24.
    25. present: Element S present: UCPD named. Independent coding pass 25.
  • Hazardpresent25/25

    Final assessment

    Majority finds h present: attempted sexual assault.

    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: Element H present: attempted sexual assault. Independent coding pass 1.
    2. present: Element H present: attempted sexual assault. Independent coding pass 2.
    3. present: Element H present: attempted sexual assault. Independent coding pass 3.
    4. present: Element H present: attempted sexual assault. Independent coding pass 4.
    5. present: Element H present: attempted sexual assault. Independent coding pass 5.
    6. present: Element H present: attempted sexual assault. Independent coding pass 6.
    7. present: Element H present: attempted sexual assault. Independent coding pass 7.
    8. present: Element H present: attempted sexual assault. Independent coding pass 8.
    9. present: Element H present: attempted sexual assault. Independent coding pass 9.
    10. present: Element H present: attempted sexual assault. Independent coding pass 10.
    11. present: Element H present: attempted sexual assault. Independent coding pass 11.
    12. present: Element H present: attempted sexual assault. Independent coding pass 12.
    13. present: Element H present: attempted sexual assault. Independent coding pass 13.
    14. present: Element H present: attempted sexual assault. Independent coding pass 14.
    15. present: Element H present: attempted sexual assault. Independent coding pass 15.
    16. present: Element H present: attempted sexual assault. Independent coding pass 16.
    17. present: Element H present: attempted sexual assault. Independent coding pass 17.
    18. present: Element H present: attempted sexual assault. Independent coding pass 18.
    19. present: Element H present: attempted sexual assault. Independent coding pass 19.
    20. present: Element H present: attempted sexual assault. Independent coding pass 20.
    21. present: Element H present: attempted sexual assault. Independent coding pass 21.
    22. present: Element H present: attempted sexual assault. Independent coding pass 22.
    23. present: Element H present: attempted sexual assault. Independent coding pass 23.
    24. present: Element H present: attempted sexual assault. Independent coding pass 24.
    25. present: Element H present: attempted sexual assault. Independent coding pass 25.
  • Locationpresent25/25

    Final assessment

    Majority finds l present: residence hall.

    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: Element L present: residence hall. Independent coding pass 1.
    2. present: Element L present: residence hall. Independent coding pass 2.
    3. present: Element L present: residence hall. Independent coding pass 3.
    4. present: Element L present: residence hall. Independent coding pass 4.
    5. present: Element L present: residence hall. Independent coding pass 5.
    6. present: Element L present: residence hall. Independent coding pass 6.
    7. present: Element L present: residence hall. Independent coding pass 7.
    8. present: Element L present: residence hall. Independent coding pass 8.
    9. present: Element L present: residence hall. Independent coding pass 9.
    10. present: Element L present: residence hall. Independent coding pass 10.
    11. present: Element L present: residence hall. Independent coding pass 11.
    12. present: Element L present: residence hall. Independent coding pass 12.
    13. present: Element L present: residence hall. Independent coding pass 13.
    14. present: Element L present: residence hall. Independent coding pass 14.
    15. present: Element L present: residence hall. Independent coding pass 15.
    16. present: Element L present: residence hall. Independent coding pass 16.
    17. present: Element L present: residence hall. Independent coding pass 17.
    18. present: Element L present: residence hall. Independent coding pass 18.
    19. present: Element L present: residence hall. Independent coding pass 19.
    20. present: Element L present: residence hall. Independent coding pass 20.
    21. present: Element L present: residence hall. Independent coding pass 21.
    22. present: Element L present: residence hall. Independent coding pass 22.
    23. present: Element L present: residence hall. Independent coding pass 23.
    24. present: Element L present: residence hall. Independent coding pass 24.
    25. present: Element L present: residence hall. Independent coding pass 25.
  • Guidanceabsent0/25

    Final assessment

    Majority finds g absent: no protective instruction in first burst.

    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. absent: Element G absent: no protective instruction in first burst. Independent coding pass 1.
    2. absent: Element G absent: no protective instruction in first burst. Independent coding pass 2.
    3. absent: Element G absent: no protective instruction in first burst. Independent coding pass 3.
    4. absent: Element G absent: no protective instruction in first burst. Independent coding pass 4.
    5. absent: Element G absent: no protective instruction in first burst. Independent coding pass 5.
    6. absent: Element G absent: no protective instruction in first burst. Independent coding pass 6.
    7. absent: Element G absent: no protective instruction in first burst. Independent coding pass 7.
    8. absent: Element G absent: no protective instruction in first burst. Independent coding pass 8.
    9. absent: Element G absent: no protective instruction in first burst. Independent coding pass 9.
    10. absent: Element G absent: no protective instruction in first burst. Independent coding pass 10.
    11. absent: Element G absent: no protective instruction in first burst. Independent coding pass 11.
    12. absent: Element G absent: no protective instruction in first burst. Independent coding pass 12.
    13. absent: Element G absent: no protective instruction in first burst. Independent coding pass 13.
    14. absent: Element G absent: no protective instruction in first burst. Independent coding pass 14.
    15. absent: Element G absent: no protective instruction in first burst. Independent coding pass 15.
    16. absent: Element G absent: no protective instruction in first burst. Independent coding pass 16.
    17. absent: Element G absent: no protective instruction in first burst. Independent coding pass 17.
    18. absent: Element G absent: no protective instruction in first burst. Independent coding pass 18.
    19. absent: Element G absent: no protective instruction in first burst. Independent coding pass 19.
    20. absent: Element G absent: no protective instruction in first burst. Independent coding pass 20.
    21. absent: Element G absent: no protective instruction in first burst. Independent coding pass 21.
    22. absent: Element G absent: no protective instruction in first burst. Independent coding pass 22.
    23. absent: Element G absent: no protective instruction in first burst. Independent coding pass 23.
    24. absent: Element G absent: no protective instruction in first burst. Independent coding pass 24.
    25. absent: Element G absent: no protective instruction in first burst. Independent coding pass 25.
  • Timepresent25/25

    Final assessment

    Majority finds t present: 6/13/26; approximately 2 AM.

    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: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 1.
    2. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 2.
    3. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 3.
    4. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 4.
    5. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 5.
    6. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 6.
    7. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 7.
    8. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 8.
    9. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 9.
    10. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 10.
    11. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 11.
    12. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 12.
    13. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 13.
    14. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 14.
    15. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 15.
    16. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 16.
    17. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 17.
    18. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 18.
    19. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 19.
    20. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 20.
    21. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 21.
    22. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 22.
    23. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 23.
    24. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 24.
    25. present: Element T present: 6/13/26; approximately 2 AM. Independent coding pass 25.
  • Impactabsent0/25

    Final assessment

    Majority finds i absent: no severity consequence language.

    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. absent: Element I absent: no severity consequence language. Independent coding pass 1.
    2. absent: Element I absent: no severity consequence language. Independent coding pass 2.
    3. absent: Element I absent: no severity consequence language. Independent coding pass 3.
    4. absent: Element I absent: no severity consequence language. Independent coding pass 4.
    5. absent: Element I absent: no severity consequence language. Independent coding pass 5.
    6. absent: Element I absent: no severity consequence language. Independent coding pass 6.
    7. absent: Element I absent: no severity consequence language. Independent coding pass 7.
    8. absent: Element I absent: no severity consequence language. Independent coding pass 8.
    9. absent: Element I absent: no severity consequence language. Independent coding pass 9.
    10. absent: Element I absent: no severity consequence language. Independent coding pass 10.
    11. absent: Element I absent: no severity consequence language. Independent coding pass 11.
    12. absent: Element I absent: no severity consequence language. Independent coding pass 12.
    13. absent: Element I absent: no severity consequence language. Independent coding pass 13.
    14. absent: Element I absent: no severity consequence language. Independent coding pass 14.
    15. absent: Element I absent: no severity consequence language. Independent coding pass 15.
    16. absent: Element I absent: no severity consequence language. Independent coding pass 16.
    17. absent: Element I absent: no severity consequence language. Independent coding pass 17.
    18. absent: Element I absent: no severity consequence language. Independent coding pass 18.
    19. absent: Element I absent: no severity consequence language. Independent coding pass 19.
    20. absent: Element I absent: no severity consequence language. Independent coding pass 20.
    21. absent: Element I absent: no severity consequence language. Independent coding pass 21.
    22. absent: Element I absent: no severity consequence language. Independent coding pass 22.
    23. absent: Element I absent: no severity consequence language. Independent coding pass 23.
    24. absent: Element I absent: no severity consequence language. Independent coding pass 24.
    25. absent: Element I absent: no severity consequence language. Independent coding pass 25.

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

About this analysis
Context

Background

UCPD X notices for residence-hall sexual assault with custody update the same day.
Analysis

Key Findings

Initial notice names attempted sexual assault in a residence hall.
Update confirms suspect in custody.
Outcome
Suspect in custody; investigation ongoing per UCPD community advisory.
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. Social
    @UCPD_Cal initial
    x.com
    archived copy
  2. Social
    @UCPD_Cal update
    x.com
    archived copy
Cite this case

Campus Alert Archive. "University of California, Berkeley: Attempted sexual assault in a residence hall; suspect in custody." Incident of June 13, 2026. Added July 2026. https://campusalertarchive.com/case/uc-berkeley-residence-hall-attempted-sexual-assault-2026-06-13/

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

Tags
uc-berkeleysexual-assaultclery
Added July 2026Updated July 2026Via ingestion