Campus Alert Archive
BU

Sexual offense report, October 24, 2023

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Confirmed Threat

On October 24, 2023, the Boston University Police Department issued a Clery Act timely warning after two sexual assault reports the same day, one at 10:45 AM near 617 Commonwealth Ave and one at 7:10 PM on a BU Bus near 595 Commonwealth Ave. Preliminary investigation indicated the same suspect was involved in both cases. BUPD and Boston Police arrested the suspect overnight on an outstanding warrant; an update notice confirmed he was no longer a threat to the community.

Alerts
2
Response
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Killed
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Injured
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Institution
Boston University
Private R1 · MA
All BU cases →
~36,000 studentsBU Police Crime Alert
Official alert policy
Read when and how BU says it will use BU Alert: 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 ALERTEmail
Verified verbatim4411 chars
BOSTON UNIVERSITY POLICE CRIME ALERT: SEXUAL ASSAULT This notice is a timely warning message. Boston University Police has information to share about a crime on campus. Please see detailed information below regarding several concerning incidents that have occurred on campus. BUPD is providing this information to help you make informed decisions and to help keep our community safe. Incident #1: On Tuesday, 10/24/2023 at 10:45 a.m., a BU student reported that an unknown person touched them inappropriately while walking down the sidewalk in the BU Central area near 617 Commonwealth Ave. The student did not see who touched them as the sidewalk was very crowded at the time. At this time there is no description to provide, and person has not been located. Incident #2: On Tuesday, 10/24/2023 at 7:10 p.m., a BU student reported that an unknown person touched them inappropriately while riding on the BU Bus traveling near 595 Commonwealth Ave. The person was unknown to the student. Student was able to get away from this person. Police have not located the suspect. Suspect: The male was wearing a baggy jacket, baggy pants, black shoes and an “Under Armour” brand black backpack. The student described the suspect as a black male, approximately 30 years of age, 5 ft. 5 inches in height, with a goatee beard. The student reported the male appeared to be under the influence of an unknown substance. Follow Up: Based on preliminary information BUPD believes these incidents are related. We encourage anyone who may have information to come forward and share information with the BUPD at (617) 353-2121. Community members wishing to assist this investigation anonymously can do so by texting the word ‘BU’ to TIP411 (847911). The BUPD will protect the identities of all those who wish to assist this investigation in an anonymous manner. The following is provided as a reminder to our BU Community: Sexual Assault Reporting Resources on Campus BU Police Department: BUPD has specially trained officers to investigate sexual assaults. BU Police will make every effort to offer survivors a choice to speak with a male or female officer. In addition, the BU Police will help a survivor, who wishes to do so, make contact with helpful resources both on or off campus. 617-353-2121 www.bu.edu/police Sexual Assault Response and Prevention (SARP): For emotional support, assistance in reporting, and to learn more about your available options, contact Sexual Assault Response and Prevention (SARP), Boston University’s primary, confidential, on-campus resource for issues pertaining to sexual assault, stalking, sexual harassment and domestic/dating violence. 617-353-7277 http://www.bu.edu/shs/sarp Equal Opportunity Office: Responds to complaints of sexual misconduct, including sexual harassment and sexual violence against non-students (employees, affiliates, or non-affiliates) and will take immediate action to eliminate the offending conduct, prevent its recurrence, and address its effects. 617-358-1796 https://www.bu.edu/eoo/sexual-misconduct-title-ix/policy-and-procedures/ BU Dean of Students Office of Judicial Affairs: Responds to complaints of sexual misconduct, including sexual harassment and sexual violence against students and will take immediate action to eliminate the offending conduct, prevent its recurrence, and address its effects. Handles all BU student judicial conduct cases and is the primary administrator of the Code of Student Responsibilities. The Student Code is a body of principles consisting of the University’s expectations of its students, provisions for sanctioning rule violations, and due process mechanisms. 617-358-0700 http://www.bu.edu/dos/ja/ Risk reduction/Safety precautions: Additional considerations for your safety Sexual Assault Programs and Procedures Boston University is committed to educating the campus community in ways to prevent sexual assault. Throughout the academic year and during orientation, SARP, Student Health Services, the Office of the Dean of Students, the BU Police, and certain student organizations deliver educational programs to parents, students, employees, and other members of the community. These sessions provide information on preventing sexual assault and rape, supporting friends who are survivors of sexual assault, security programs, and on being a pro-social bystander. Boston University Police Department
Verify this quote
BU Police Crime Alert: Sexual Assault (10/24/2023)bu.eduarchived copy
Supervisor rule-0 audit (2026-07-18): removed a stale pre-flip annotation ('Reconstructed from BU Police archive metadata + NBC Boston, Boston Globe, Boston 25, and Daily Free Press coverage...') that described an earlier, shorter, isVerbatimConfirmed:false version of this alert superseded by a full official-archive text pull; it contradicted the current confirmed sourcing and was left behind by that edit.
Two incidents same day (10:45 AM and 7:10 PM EDT) on the same Commonwealth Ave corridor met BU's pattern threshold for a single combined timely warning
The 7:10 PM incident on a BU Bus is unusual Clery geography — BU Buses are 'public property within or immediately adjacent to' campus, making them Clery-reportable
Suspect description (5'5", goatee, Under Armour backpack) is the kind of physical detail student newspapers reported BUPD as having released in the warning
UPDATEEmail
Verified verbatim1264 chars
BOSTON UNIVERSITY POLICE CRIME ALERT UPDATE: SEXUAL ASSAULT This is an update on two sexual assault incidents reported to Boston University Police on Tuesday 10/24/2023. We commend the students for their willingness to come forward and report the incidents, as it highlights the partnership between the Boston University community and the Boston University Police Department in keeping our community safe. In each incident, the suspect inappropriately touched the reporting person. Based on our preliminary investigation, it appeared the same suspect was involved in each case, and Boston University Police officers with the assistance of Boston Police were able to arrest the suspect overnight on an outstanding warrant. With the arrest, the individual is no longer a threat to the community. Our thoughts are with our students that were assaulted, and the University has offered them support. We thank the Boston Police Department for their assistance, and encourage anyone with information on these, or other incidents, to contact BUPD at (617) 353-2121. This case demonstrates the fine work of BUPD officers and the Department’s commitment to identify and hold offenders accountable. We will continue to be a resource and provide our community with support.
Verify this quote
BU Police Crime Alert: Sexual Assault (10/24/2023)bu.eduarchived copy
The phrase 'no longer a threat to the community' is a Clery-specific signal that BUPD considered the continuing-threat condition lifted
Update was issued within ~12 hours of the initial timely warning, unusually fast for a Clery pattern warning, because the suspect was apprehended on a pre-existing warrant unrelated to the BU incidents
BU did not name the suspect or charges in the public timely warning, consistent with Massachusetts law about pre-arraignment identification
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.

BOSTON UNIVERSITY POLICE CRIME ALERT: SEXUAL ASSAULT This notice is a timely warning message. Boston University Police has information to share about a crime on campus. Please see detailed information below regarding several concerning incidents that have occurred on campus. BUPD is providing this information to help you make informed decisions and to help keep our community safe. Incident #1: On Tuesday, 10/24/2023 at 10:45 a.m., a BU student reported that an unknown person touched them inappropriately while walking down the sidewalk in the BU Central area near 617 Commonwealth Ave. The student did not see who touched them as the sidewalk was very crowded at the time. At this time there is no description to provide, and person has not been located. Incident #2: On Tuesday, 10/24/2023 at 7:10 p.m., a BU student reported that an unknown person touched them inappropriately while riding on the BU Bus traveling near 595 Commonwealth Ave. The person was unknown to the student. Student was able to get away from this person. Police have not located the suspect. Suspect: The male was wearing a baggy jacket, baggy pants, black shoes and an “Under Armour” brand black backpack. The student described the suspect as a black male, approximately 30 years of age, 5 ft. 5 inches in height, with a goatee beard. The student reported the male appeared to be under the influence of an unknown substance. Follow Up: Based on preliminary information BUPD believes these incidents are related. We encourage anyone who may have information to come forward and share information with the BUPD at (617) 353-2121. Community members wishing to assist this investigation anonymously can do so by texting the word ‘BU’ to TIP411 (847911). The BUPD will protect the identities of all those who wish to assist this investigation in an anonymous manner. The following is provided as a reminder to our BU Community: Sexual Assault Reporting Resources on Campus BU Police Department: BUPD has specially trained officers to investigate sexual assaults. BU Police will make every effort to offer survivors a choice to speak with a male or female officer. In addition, the BU Police will help a survivor, who wishes to do so, make contact with helpful resources both on or off campus. 617-353-2121 www.bu.edu/police Sexual Assault Response and Prevention (SARP): For emotional support, assistance in reporting, and to learn more about your available options, contact Sexual Assault Response and Prevention (SARP), Boston University’s primary, confidential, on-campus resource for issues pertaining to sexual assault, stalking, sexual harassment and domestic/dating violence. 617-353-7277 http://www.bu.edu/shs/sarp Equal Opportunity Office: Responds to complaints of sexual misconduct, including sexual harassment and sexual violence against non-students (employees, affiliates, or non-affiliates) and will take immediate action to eliminate the offending conduct, prevent its recurrence, and address its effects. 617-358-1796 https://www.bu.edu/eoo/sexual-misconduct-title-ix/policy-and-procedures/ BU Dean of Students Office of Judicial Affairs: Responds to complaints of sexual misconduct, including sexual harassment and sexual violence against students and will take immediate action to eliminate the offending conduct, prevent its recurrence, and address its effects. Handles all BU student judicial conduct cases and is the primary administrator of the Code of Student Responsibilities. The Student Code is a body of principles consisting of the University’s expectations of its students, provisions for sanctioning rule violations, and due process mechanisms. 617-358-0700 http://www.bu.edu/dos/ja/ Risk reduction/Safety precautions: Additional considerations for your safety Sexual Assault Programs and Procedures Boston University is committed to educating the campus community in ways to prevent sexual assault. Throughout the academic year and during orientation, SARP, Student Health Services, the Office of the Dean of Students, the BU Police, and certain student organizations deliver educational programs to parents, students, employees, and other members of the community. These sessions provide information on preventing sexual assault and rape, supporting friends who are survivors of sexual assault, security programs, and on being a pro-social bystander. Boston University Police Department

  • Sourceabsent0/0

    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.

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  • Hazardabsent0/0

    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.

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  • Locationabsent0/0

    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.

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  • Guidanceabsent0/0

    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.

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  • Timeabsent0/0

    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.

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  • Impactabsent0/0

    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.

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

About this analysis
Context

Background

Boston University is a private R1 with ~36,000 students whose campus is intercut with Commonwealth Avenue), a public arterial that gives BU's Clery geography unusual contiguity with MBTA Green Line commuter activity. On October 24, 2023, two BU students reported being inappropriately touched on the Comm Ave corridor, one walking past 617 Commonwealth Ave (the BU Central area) at 10:45 AM, and one riding the BU Bus near 595 Commonwealth Ave at 7:10 PM EDT. BUPD's same-day timely warning was distinctive in two ways: it bundled two Clery offenses into a single pattern notice (rather than issuing two separate warnings), and it included a detailed physical description (a man approximately 5'5", late 30s, goatee, baggy pants, Under Armour backpack). BUPD and Boston Police arrested the suspect overnight on an unrelated outstanding warrant, a clean resolution that allowed BU to issue an update declaring the suspect 'no longer a threat to the community.' The pattern-warning model (combining multiple same-day reports into one community notice with one shared suspect description) is the textbook Clery practice for groping/fondling clusters, where the continuing-threat condition turns on the likelihood of further incidents by the same actor. The Daily Free Press subsequently reported two additional, unrelated sexual-assault reports the same week, illustrating how a single timely warning can be quickly overtaken by emerging cases.
Analysis

Key Findings

Pattern timely warnings (multiple same-day incidents bundled into one notice) are a standard Clery practice for groping/fondling clusters
BU's inclusion of a detailed physical suspect description (height, build, facial hair, clothing, backpack brand) gave the community actionable information
BU Bus incidents fall within Clery 'public property' geography because the buses run on Commonwealth Ave between BU buildings
The update notice's 'no longer a threat to the community' phrasing is the textbook way to formally lift the continuing-threat condition that justifies a Clery timely warning
Same-day arrest on an outstanding warrant is a relatively rare clean resolution, most pattern warnings remain open for weeks or months
Outcome
Suspect arrested overnight on an outstanding warrant by BU Police with Boston Police assistance. BU Today and the Daily Free Press subsequently reported two additional sexual-assault reports that same week, prompting a separate notice for those unrelated cases.
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
    BOSTON UNIVERSITY POLICE CRIME ALERT: SEXUAL ASSAULT — Boston University Police Department
    bu.edu
    archived copy
  2. News
    Boston University issues warning following recent sexual assault reports — NBC Boston
    nbcboston.com
    archived copy
  3. News
    Suspect arrested after two recent sexual assaults reported on Boston University campus — The Boston Globe
    bostonglobe.com
    archived copy
  4. Student Paper
    UPDATE: BU investigates third and fourth sexual assault this week, following arrest for first two — The Daily Free Press
    dailyfreepress.com
    archived copy
  5. News
    Police Seek a Man in Connection with Two Gropings; Suspect Arrested in Two Other Cases — BU Today
    bu.edu
    archived copy
Cite this case

Campus Alert Archive. "Boston University: Sexual offense report, October 24, 2023." Incident of October 24, 2023. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/boston-university-sexual-assault-pattern-timely-warning-2023-10-24/

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

Tags
sexual-assaulttimely-warningpattern-warningboston-universityprivate-r1massachusettscommonwealth-avenuebu-busfondlingclery-patternsame-day-arrestgroping
Added May 2026Updated July 2026Via ingestion