Campus Alert Archive
Skyline

A man exposes himself to two students on a rooftop deck and flees the area

AI-generated · every claim is source-linked
CAsexual offensetimely warninghigh confidence
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Confirmed Threat

San Mateo County Community College District Public Safety issued a timely warning after an unknown man exposed himself to two female students on the Building 4 Roof Deck at Skyline College at approximately 6:58 p.m. on Friday, October 6, 2023. The suspect fled the area a few minutes after the students left, and he was not identified as affiliated with the campus.

Alerts
1
Response
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Killed
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Injured
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Institution
Skyline College
Community College · CA
All Skyline cases →
~6,000 studentsAlertMe
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 verbatim2630 chars
SMCCCD’s Department of Public Safety has determined circumstances exist that may pose a threat to members and guests of the Skyline campus community. Please read this notification for additional information. Offense(s): Indecent Exposure: Location(s): Skyline College, Building 4 Roof Deck, 3300 College Drive, San Bruno, California Date/Time of Occurrence(s): 10/6/23 at approximately 6:58 pm Description of Suspect(s): The male suspect was described as an African American male adult, approximately 6’ tall, with a goatee and birthmark or small tattoo adjacent to his right eye. The suspect is of medium build with an unknown age and weight. The suspect was last seen wearing the clothing seen in the photos below: Description of Suspect Vehicle(s): None currently Incident Summary: On Friday, October 6, 2023, at approximately 6:58 pm it was reported that an unknown male suspect exposed his genitals to two female students. The female students left the area, and the suspect left the area a few minutes later. Anyone with information pertaining to this crime should contact SMCCCD Public Safety at (650) 738-7000 or San Bruno Police at (650) 616-7100. Safety Tips: Be aware of your surroundings. Know escape routes in your paths of travel. If you see a person on campus who appears in distress, seek immediate help from SMCCCD Public Safety, San Bruno Police, or San Mateo County Sheriff’s office. Walk in pairs, if possible. Park and walk in well-lit public areas. If you are involved in, or a witness to, a situation that appears unsafe or makes you uncomfortable, go to a safe area and call for help. Trust your instincts: If you suspect something is wrong or if a situation seems dangerous, you are probably right. Program your phone:  San Mateo Community College Public Safety Dispatch: (650) 738-7000 San Bruno Police Department: (650) 616-7100 San Mateo County Sheriff’s Office: (650) 216 7676 or (650) 363-4911 If you are ever in a situation where you are unsure or scared, call SMCCCD Public Safety at (650) 738-7000 Warning issued by: SMCCCD Department of Public Safety This information is being released in accordance with the Federal Jeanne Clery Disclosure of Campus Security Policy and Campus Crime Statistics Act, commonly known as the “Clery Act,” which requires all colleges and universities that participate in federal financial aid programs to keep and disclose information about crime on, and near their respective campuses, including timely warnings of crimes that may represent a serious or ongoing threat to the safety of students or employees. This message is for information only.
Verify this quote
SMCCCD Alerts & Notices — Timely Warning Indecent Exposureemergency.smccd.infofind archived copies
Full official SMCCCD timely-warning bulletin recovered from emergency.smccd.info.
Names the exact location, the Building 4 Roof Deck, an unusual and specific outdoor space on the Skyline campus rather than a generic 'on campus' description
Invokes the Clery Act by name as the legal basis for the release, standard boilerplate language in SMCCCD timely warnings
Provides two separate contact numbers, campus Public Safety and San Bruno Police, splitting jurisdiction between the district and the city
Supervisor rule-0 audit (2026-07-18): demoted from isVerbatimConfirmed:true -- the alert's own retained annotation admits the exact wording was never independently verified against an archived capture of the official page, so the confirmed flag contradicted the case file's own evidence.
2026-09-21 second deep audit b48 P3 partial: admitted-excerpt-or-snippet-assembled. Recapture full official body. Dual html.parser walk+regex strip. Cap-exempt R1.
Message elements

How the first alert is built

To check this alert, Claude Opus 5.5 (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.

SMCCCD’s Department of Public Safety has determined circumstances exist that may pose a threat to members and guests of the Skyline campus community. Please read this notification for additional information. Offense(s): Indecent Exposure: Location(s): Skyline College, Building 4 Roof Deck, 3300 College Drive, San Bruno, California Date/Time of Occurrence(s): 10/6/23 at approximately 6:58 pm Description of Suspect(s): The male suspect was described as an African American male adult, approximately 6’ tall, with a goatee and birthmark or small tattoo adjacent to his right eye. The suspect is of medium build with an unknown age and weight. The suspect was last seen wearing the clothing seen in the photos below: Description of Suspect Vehicle(s): None currently Incident Summary: On Friday, October 6, 2023, at approximately 6:58 pm it was reported that an unknown male suspect exposed his genitals to two female students. The female students left the area, and the suspect left the area a few minutes later. Anyone with information pertaining to this crime should contact SMCCCD Public Safety at (650) 738-7000 or San Bruno Police at (650) 616-7100. Safety Tips: Be aware of your surroundings. Know escape routes in your paths of travel. If you see a person on campus who appears in distress, seek immediate help from SMCCCD Public Safety, San Bruno Police, or San Mateo County Sheriff’s office. Walk in pairs, if possible. Park and walk in well-lit public areas. If you are involved in, or a witness to, a situation that appears unsafe or makes you uncomfortable, go to a safe area and call for help. Trust your instincts: If you suspect something is wrong or if a situation seems dangerous, you are probably right. Program your phone:  San Mateo Community College Public Safety Dispatch: (650) 738-7000 San Bruno Police Department: (650) 616-7100 San Mateo County Sheriff’s Office: (650) 216 7676 or (650) 363-4911 If you are ever in a situation where you are unsure or scared, call SMCCCD Public Safety at (650) 738-7000 Warning issued by: SMCCCD Department of Public Safety This information is being released in accordance with the Federal Jeanne Clery Disclosure of Campus Security Policy and Campus Crime Statistics Act, commonly known as the “Clery Act,” which requires all colleges and universities that participate in federal financial aid programs to keep and disclose information about crime on, and near their respective campuses, including timely warnings of crimes that may represent a serious or ongoing threat to the safety of students or employees. This message is for information only.

  • Sourcepresent25/25

    Final assessment

    Present, unanimously: the warning is issued by the "SMCCCD Department of Public Safety" and signed "Warning issued by" that department.

    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: It is issued by 'SMCCCD Department of Public Safety'.
    2. present: SMCCCD Department of Public Safety is named as the issuer.
    3. present: It is issued by the SMCCCD Department of Public Safety.
    4. present: SMCCCD Department of Public Safety.
    5. present: It names 'SMCCCD's Department of Public Safety' as issuer.
    6. present: SMCCCD's Department of Public Safety issues the warning.
    7. present: Issued by SMCCCD Department of Public Safety.
    8. present: The SMCCCD Department of Public Safety issues the warning.
    9. present: SMCCCD's Department of Public Safety is named as issuer.
    10. present: It says 'SMCCCD's Department of Public Safety has determined' and is signed by that department.
    11. present: SMCCCD's Department of Public Safety is named as the issuer.
    12. present: SMCCCD's Department of Public Safety issues the warning.
    13. present: SMCCCD's Department of Public Safety issues the warning.
    14. present: SMCCCD's Department of Public Safety issues it.
    15. present: 'SMCCCD Department of Public Safety' issues the warning.
    16. present: "SMCCCD's Department of Public Safety" issues the warning.
    17. present: SMCCCD's Department of Public Safety is named as issuer.
    18. present: SMCCCD's Department of Public Safety is named as issuer.
    19. present: Issued by the SMCCCD Department of Public Safety.
    20. present: SMCCCD Department of Public Safety.
    21. present: SMCCCD's Department of Public Safety is named.
    22. present: 'SMCCCD's Department of Public Safety' issues the warning.
    23. present: It is issued by 'SMCCCD Department of Public Safety'.
    24. present: It names the SMCCCD Department of Public Safety as issuer.
    25. present: It says 'SMCCCD's Department of Public Safety has determined' and ends 'Warning issued by: SMCCCD Department of Public Safety'.
  • Hazardpresent25/25

    Final assessment

    Present, unanimously: the offense is named outright as "Indecent Exposure".

    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: It names 'Indecent Exposure'.
    2. present: It names indecent exposure.
    3. present: It names indecent exposure.
    4. present: Indecent exposure.
    5. present: It names 'Indecent Exposure'.
    6. present: It names "Indecent Exposure".
    7. present: Names indecent exposure.
    8. present: It names indecent exposure.
    9. present: It names "Indecent Exposure".
    10. present: It names the offense 'Indecent Exposure'.
    11. present: It names "Indecent Exposure".
    12. present: It names indecent exposure.
    13. present: It names indecent exposure.
    14. present: It names indecent exposure.
    15. present: Names 'Indecent Exposure'.
    16. present: It names "Indecent Exposure".
    17. present: It names indecent exposure.
    18. present: It names indecent exposure.
    19. present: Names 'Indecent Exposure'.
    20. present: Indecent exposure.
    21. present: It names indecent exposure.
    22. present: It names 'Indecent Exposure'.
    23. present: It names 'Indecent Exposure'.
    24. present: It names indecent exposure.
    25. present: It lists the offense as 'Indecent Exposure', a specific crime.
  • Locationpresent25/25

    Final assessment

    Present, unanimously: it gives "Skyline College, Building 4 Roof Deck, 3300 College Drive, San Bruno".

    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: It gives 'Skyline College, Building 4 Roof Deck, 3300 College Drive'.
    2. present: It gives Skyline College, Building 4 Roof Deck.
    3. present: It gives Skyline College, Building 4 Roof Deck.
    4. present: Skyline College, Building 4 Roof Deck.
    5. present: It gives 'Skyline College, Building 4 Roof Deck, 3300 College Drive'.
    6. present: It gives "Skyline College, Building 4 Roof Deck, 3300 College Drive".
    7. present: Gives Building 4 Roof Deck, Skyline College.
    8. present: It gives Skyline College, Building 4 Roof Deck.
    9. present: It gives Skyline College, Building 4 Roof Deck.
    10. present: It gives 'Skyline College, Building 4 Roof Deck, 3300 College Drive'.
    11. present: It gives Skyline College Building 4 Roof Deck.
    12. present: It gives Building 4 Roof Deck, Skyline College.
    13. present: It gives Building 4 Roof Deck at Skyline College.
    14. present: It names Building 4 Roof Deck at Skyline College.
    15. present: 'Building 4 Roof Deck, 3300 College Drive'.
    16. present: It gives "Building 4 Roof Deck, 3300 College Drive".
    17. present: It gives Building 4 Roof Deck at Skyline College.
    18. present: It gives Building 4 Roof Deck, Skyline College.
    19. present: Skyline College, Building 4 Roof Deck.
    20. present: Skyline College Building 4 Roof Deck.
    21. present: It gives Building 4 Roof Deck at Skyline College.
    22. present: It gives 'Building 4 Roof Deck, 3300 College Drive'.
    23. present: It gives 'Skyline College, Building 4 Roof Deck, 3300 College Drive'.
    24. present: It gives Building 4 Roof Deck at Skyline College.
    25. present: It gives 'Skyline College, Building 4 Roof Deck, 3300 College Drive, San Bruno'.
  • Guidancepresent25/25

    Final assessment

    Present, unanimously: the safety tips instruct readers to walk in pairs, park in well lit areas, and "go to a safe area and call for help".

    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: Tips tell readers to walk in pairs, use well lit areas, and go to a safe area and call for help.
    2. present: It advises walking in pairs and going to a safe area to call for help.
    3. present: It advises walking in pairs and going to a safe area to call for help.
    4. present: Safety tips such as walk in pairs and go to a safe area.
    5. present: It tells readers to 'Walk in pairs' and 'go to a safe area and call for help'.
    6. present: Safety tips advise walking in pairs and going to a safe area to call for help.
    7. present: Tips include walking in pairs and going to a safe area to call for help.
    8. present: Safety tips advise walking in pairs and going to a safe area to call for help.
    9. present: Tips say to walk in pairs and park in well lit areas.
    10. present: It advises 'Walk in pairs' and to 'go to a safe area and call for help'.
    11. present: Safety tips advise walking in pairs and going to a safe area to call for help.
    12. present: It advises walking in pairs and going to a safe area to call for help.
    13. present: It advises walking in pairs and going to a safe area.
    14. present: It advises walking in pairs and going to a safe area to call for help.
    15. present: Tips say walk in pairs and go to a safe area and call for help.
    16. present: It advises walking in pairs and going to a safe area to call for help.
    17. present: Tips advise walking in pairs and going to a safe area to call for help.
    18. present: Tips tell readers to walk in pairs and go to a safe area and call for help.
    19. present: Safety tips such as 'Walk in pairs' and go to a safe area and call for help.
    20. present: Tips to walk in pairs and go to a safe area and call for help.
    21. present: Tips include walking in pairs and going to a safe area.
    22. present: Tips say walk in pairs, park in well lit areas, and go to a safe area.
    23. present: Tips include 'Walk in pairs' and go to a safe area and call for help.
    24. present: Safety tips advise walking in pairs and going to a safe area.
    25. present: It advises 'Walk in pairs', park in well-lit areas, and 'go to a safe area and call for help'.
  • Timepresent25/25

    Final assessment

    Present, unanimously: it states the occurrence as "10/6/23 at approximately 6:58 pm".

    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: It gives '10/6/23 at approximately 6:58 pm'.
    2. present: It gives 10/6/23 at approximately 6:58 pm.
    3. present: It gives 10/6/23 at approximately 6:58 pm.
    4. present: 10/6/23 at approximately 6:58 pm.
    5. present: It gives '10/6/23 at approximately 6:58 pm'.
    6. present: It gives "10/6/23 at approximately 6:58 pm".
    7. present: Gives 10/6/23 at approximately 6:58 pm.
    8. present: It gives 10/6/23 at approximately 6:58 pm.
    9. present: It gives 10/6/23 at approximately 6:58 pm.
    10. present: It gives '10/6/23 at approximately 6:58 pm'.
    11. present: It gives 10/6/23 at approximately 6:58 pm.
    12. present: It gives 10/6/23 at approximately 6:58 pm.
    13. present: It gives 10/6/23 at approximately 6:58 pm.
    14. present: It gives 10/6/23 at approximately 6:58 pm.
    15. present: '10/6/23 at approximately 6:58 pm'.
    16. present: It gives "10/6/23 at approximately 6:58 pm".
    17. present: It gives 10/6/23 at approximately 6:58 pm.
    18. present: It gives 10/6/23 at approximately 6:58 pm.
    19. present: Gives '10/6/23 at approximately 6:58 pm'.
    20. present: 10/6/23 at approximately 6:58 pm.
    21. present: It gives 10/6/23 at about 6:58 pm.
    22. present: It gives '10/6/23 at approximately 6:58 pm'.
    23. present: It gives '10/6/23 at approximately 6:58 pm'.
    24. present: It gives 10/6/23 at approximately 6:58 pm.
    25. present: It gives '10/6/23 at approximately 6:58 pm' as the time of occurrence.
  • Impactpresent21/25

    Final assessment

    Present, by a strong majority: it says circumstances "may pose a threat to members and guests" of the campus. A small minority judged that phrase too generic to state a consequence.

    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: It says circumstances 'may pose a threat to members and guests' of the campus.
    2. present: It says circumstances 'may pose a threat' to the campus community.
    3. present: It says circumstances 'may pose a threat to members and guests', stating the incident's seriousness.
    4. present: States circumstances 'may pose a threat' to the community.
    5. absent: It says circumstances 'may pose a threat' but states no concrete consequence or severity.
    6. present: It states circumstances exist "that may pose a threat" to the campus community.
    7. present: States circumstances 'may pose a threat' to the campus community.
    8. present: It states circumstances "may pose a threat" to the campus community for this incident.
    9. present: It says circumstances "may pose a threat to members and guests".
    10. present: It states circumstances 'may pose a threat to members and guests of the Skyline campus community'.
    11. present: It says circumstances exist "that may pose a threat" to the community.
    12. present: It says circumstances "may pose a threat" to the campus community.
    13. present: It says circumstances "may pose a threat" and cites serious or ongoing threats.
    14. present: It says circumstances "may pose a threat" to the campus community.
    15. present: States circumstances 'may pose a threat' and a 'serious or ongoing threat'.
    16. absent: "may pose a threat" is generic; no consequence is stated.
    17. absent: Only generic 'may pose a threat' language appears; no consequence stated.
    18. present: It says the circumstances 'may pose a threat to members and guests' of the campus.
    19. present: States circumstances 'may pose a threat to members and guests'.
    20. present: Says circumstances may pose a threat to the campus community.
    21. present: It says circumstances 'may pose a threat' to the community, conveying seriousness.
    22. present: It states circumstances 'may pose a threat to members and guests', conveying seriousness.
    23. present: It says circumstances 'may pose a threat to members and guests', asserting risk to people.
    24. absent: It says circumstances "may pose a threat" but states no consequence or severity.
    25. present: It opens by saying 'circumstances exist that may pose a threat to members and guests', stating the incident's seriousness.

Coded by Claude Opus 5.5

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

About this analysis
Context

Background

Skyline College, part of the San Mateo County Community College District, sits in San Bruno, California. On the evening of October 6, 2023, an unknown man exposed himself to two female students on the Building 4 Roof Deck, a campus space not typically associated with safety incidents. The students left the area, and the suspect, described as an African American man in his twenties or thirties with a goatee and a birthmark or small tattoo near his right eye, left a few minutes later. SMCCCD's Department of Public Safety issued a timely warning under the Clery Act, a designation reserved for crimes the district determines pose an ongoing threat to the community. Indecent exposure cases like this one are Clery-reportable non-forcible sex offenses, distinct from the sexual-assault warnings that make up a larger share of campus timely-warning traffic, and they illustrate how community colleges with open, urban-adjacent campuses handle a less-discussed category of alert.
Analysis

Key Findings

The Building 4 Roof Deck, a specific outdoor space, was named directly in the warning rather than a vague 'on campus' description
The suspect was not believed to be affiliated with Skyline College, illustrating that timely warnings often describe threats from outside the student body
Indecent exposure is a Clery-reportable non-forcible sex offense that triggers the same timely-warning obligation as more severe sex crimes
The district split investigative contact information between its own Public Safety department and municipal San Bruno Police
Outcome
SMCCCD Public Safety asked anyone with information to contact the department or San Bruno Police; no arrest had been publicly reported at the time the warning was issued.
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
    SMCCCD Timely Warning | Indecent Exposure - Alerts & Notices
    emergency.smccd.info
    archived copy
  2. Student Paper
    Unknown man exposes himself to two women at Skyline College - The Skyline View
    theskylineview.com
    archived copy
  3. Official
    AlertMe - Public Safety - San Mateo County Community College District
    smccd.edu
    archived copy
Cite this case

Campus Alert Archive. "Skyline College: A man exposes himself to two students on a rooftop deck and flees the area." Incident of October 6, 2023. Added July 2026; last updated September 2026. https://campusalertarchive.com/case/skyline-college-indecent-exposure-2023-10-06/

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

Tags
indecent-exposuresexual-offensetimely-warningcaliforniacommunity-collegesmcccdclery-act
Added July 2026Updated September 2026Via ingestion