Campus Alert Archive
Skyline

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

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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 verbatim2623 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.
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.

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

    Unanimous agreement that SMCCCD's Department of Public Safety is explicitly named as the issuing authority.

    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: Issued by "SMCCCD's Department of Public Safety," a named agency.
    2. present: Identifies SMCCCD's Department of Public Safety as the issuing authority.
    3. present: Issued by SMCCCD Department of Public Safety, explicitly named
    4. present: identifies SMCCCD Department of Public Safety as issuer
    5. present: Identifies SMCCCD's Department of Public Safety as issuer.
    6. present: 'SMCCCD's Department of Public Safety' identified as issuer
    7. present: 'SMCCCD's Department of Public Safety' issuer
    8. present: Identifies SMCCCD Department of Public Safety as the issuing authority.
    9. present: Issued by 'SMCCCD Department of Public Safety'.
    10. present: 'SMCCCD's Department of Public Safety' and 'Warning issued by' named.
    11. present: Identifies SMCCCD Department of Public Safety as issuer.
    12. present: Issued by SMCCCD's Department of Public Safety.
    13. present: 'SMCCCD's Department of Public Safety' named as issuer.
    14. present: Names SMCCCD's Department of Public Safety as issuer.
    15. present: 'SMCCCD's Department of Public Safety' is named as issuer.
    16. present: 'SMCCCD's Department of Public Safety' identified as issuer.
    17. present: 'SMCCCD's Department of Public Safety' issuer named.
    18. present: 'SMCCCD's Department of Public Safety' named
    19. present: 'SMCCCD's Department of Public Safety' issues the notification
    20. present: Identifies SMCCCD Department of Public Safety as issuer.
    21. present: Issued by 'SMCCCD's Department of Public Safety', explicitly named
    22. present: 'SMCCCD's Department of Public Safety' issues the notice
    23. present: SMCCCD Department of Public Safety named as issuer.
    24. present: 'SMCCCD's Department of Public Safety' is named issuer.
    25. present: Issued by 'SMCCCD's Department of Public Safety'.
  • Hazardpresent25/25

    Final assessment

    Unanimous agreement that 'Indecent Exposure' is named as the specific offense.

    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: Specifies "Indecent Exposure" as the offense.
    2. present: Names 'Indecent Exposure' as the specific offense.
    3. present: Names indecent exposure as the offense
    4. present: names indecent exposure specifically
    5. present: Names indecent exposure as the offense.
    6. present: 'Indecent Exposure' named
    7. present: 'Indecent Exposure'
    8. present: States the offense as 'Indecent Exposure'.
    9. present: Names 'Indecent Exposure' as the offense.
    10. present: Names indecent exposure specifically.
    11. present: Names indecent exposure.
    12. present: Names indecent exposure as the offense.
    13. present: 'Indecent Exposure' named specifically.
    14. present: States 'Indecent Exposure' as offense type.
    15. present: 'Indecent Exposure' names the specific offense.
    16. present: 'Indecent Exposure' names the offense.
    17. present: Indecent Exposure named specifically.
    18. present: 'Indecent Exposure' named specifically
    19. present: 'Indecent Exposure'
    20. present: States 'Indecent Exposure'.
    21. present: States 'Indecent Exposure' as the offense
    22. present: 'Indecent Exposure'
    23. present: Indecent exposure specified.
    24. present: 'Indecent Exposure' is the specific hazard.
    25. present: Names 'Indecent Exposure' as the offense.
  • Locationpresent25/25

    Final assessment

    Unanimous agreement that a specific address, Skyline College Building 4 Roof Deck at 3300 College Drive, is given.

    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: Gives the address "Skyline College, Building 4 Roof Deck, 3300 College Drive."
    2. present: Names Skyline College, Building 4 Roof Deck, and the street address.
    3. present: Skyline College Building 4 Roof Deck address given
    4. present: names Skyline College Building 4 Roof Deck and address
    5. present: Names Skyline College Building 4 Roof Deck address.
    6. present: 'Skyline College, Building 4 Roof Deck, 3300 College Drive'
    7. present: 'Skyline College, Building 4 Roof Deck, 3300 College Drive'
    8. present: Names Skyline College Building 4 Roof Deck, 3300 College Drive.
    9. present: Names Skyline College, Building 4 Roof Deck, address given.
    10. present: Skyline College Building 4 Roof Deck address given.
    11. present: Names Skyline College Building 4 Roof Deck address.
    12. present: Gives Skyline College, Building 4 Roof Deck, 3300 College Drive.
    13. present: 'Skyline College, Building 4 Roof Deck' address given.
    14. present: Gives 'Skyline College, Building 4 Roof Deck, 3300 College Drive'.
    15. present: Names Skyline College, Building 4 Roof Deck, address given.
    16. present: 'Skyline College, Building 4 Roof Deck, 3300 College Drive' given.
    17. present: Skyline College Building 4 Roof Deck address given.
    18. present: 'Skyline College, Building 4 Roof Deck' given
    19. present: 'Skyline College, Building 4 Roof Deck, 3300 College Drive'
    20. present: Names Skyline College Building 4 Roof Deck and address.
    21. present: Names Skyline College, Building 4 Roof Deck, address given
    22. present: 'Skyline College, Building 4 Roof Deck'
    23. present: Skyline College Building 4 Roof Deck address given.
    24. present: 'Skyline College, Building 4 Roof Deck, 3300 College Drive' given.
    25. present: Names Skyline College Building 4 Roof Deck and the address.
  • Guidancepresent24/25

    Final assessment

    Nearly unanimous agreement that safety tips like walking in pairs, parking in well-lit areas, and calling for help constitute protective guidance, with a single dissent viewing them as too generic.

    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: Provides safety tips like walking in pairs and calling Public Safety if unsafe.
    2. present: Provides safety tips like walking in pairs and parking in well-lit areas.
    3. present: Safety tips like walk in pairs, park in well-lit areas, call for help
    4. present: gives safety tips like walk in pairs, park in well-lit areas, call for help
    5. present: Gives safety tips like walking in pairs, parking in well-lit areas.
    6. present: Safety tips: walk in pairs, be aware of surroundings, call Public Safety
    7. present: Safety tips like 'walk in pairs', 'call for help'
    8. present: Gives safety tips like walking in pairs and parking in well-lit areas.
    9. present: Gives safety tips: walk in pairs, park in well-lit areas.
    10. present: Safety tips like walking in pairs, calling for help.
    11. present: Gives safety tips like walking in pairs, calling for help.
    12. present: Lists safety tips like walking in pairs and parking in well-lit areas.
    13. present: Safety tips like 'walk in pairs', 'seek immediate help' give protective actions.
    14. present: Provides safety tips like walking in pairs, parking in well-lit areas.
    15. present: Provides safety tips like walk in pairs, contact public safety.
    16. present: Safety tips like 'walk in pairs' and 'seek immediate help' are protective actions.
    17. present: Safety tips like walk in pairs, park in well-lit areas.
    18. present: Safety tips like 'Walk in pairs' and 'seek immediate help'
    19. absent: only general safety tips, no specific protective action to this incident
    20. present: Gives safety tips like walking in pairs and calling for help.
    21. present: Safety tips like walk in pairs, park in well-lit areas, call for help
    22. present: safety tips like 'walk in pairs', 'call for help'
    23. present: Safety tips like walk in pairs, park in well-lit areas.
    24. present: Safety tips like 'walk in pairs' and 'seek immediate help' are protective guidance.
    25. present: Provides safety tips like walking in pairs and parking in well-lit areas.
  • Timepresent25/25

    Final assessment

    Unanimous agreement that a specific date and time, 10/6/23 at approximately 6:58 pm, is given.

    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: States "10/6/23 at approximately 6:58 pm."
    2. present: Gives the date and time 'October 6, 2023...6:58 pm'.
    3. present: '10/6/23 at approximately 6:58 pm' given
    4. present: gives date and time '10/6/23 at approximately 6:58 pm'
    5. present: States 10/6/23 at approximately 6:58 pm.
    6. present: '10/6/23 at approximately 6:58 pm'
    7. present: '10/6/23 at approximately 6:58 pm'
    8. present: Gives '10/6/23 at approximately 6:58 pm'.
    9. present: Gives '10/6/23 at approximately 6:58 pm'.
    10. present: '10/6/23 at approximately 6:58 pm' given.
    11. present: Gives date 10/6/23 approximately 6:58 pm.
    12. present: States '10/6/23 at approximately 6:58 pm.'
    13. present: '10/6/23 at approximately 6:58 pm' given.
    14. present: Gives date/time '10/6/23 at approximately 6:58 pm'.
    15. present: '10/6/23 at approximately 6:58 pm' given.
    16. present: '10/6/23 at approximately 6:58 pm' given.
    17. present: '10/6/23 at approximately 6:58 pm'.
    18. present: '10/6/23 at approximately 6:58 pm' given
    19. present: '10/6/23 at approximately 6:58 pm'
    20. present: Gives '10/6/23 at approximately 6:58 pm'.
    21. present: '10/6/23 at approximately 6:58 pm'
    22. present: '10/6/23 at approximately 6:58 pm'
    23. present: '10/6/23 at approximately 6:58 pm'.
    24. present: '10/6/23 at approximately 6:58 pm' given.
    25. present: Gives date and time '10/6/23 at approximately 6:58 pm'.
  • Impactabsent0/25

    Final assessment

    Unanimous agreement that no severity or consequence beyond describing the offense itself is stated.

    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: No statement of potential harm or severity beyond describing the exposure incident.
    2. absent: No statement of harm severity beyond describing the offense.
    3. absent: No stated potential harm beyond describing the offense
    4. absent: no explicit statement of potential harm or severity beyond describing the offense
    5. absent: No stated severity or harm beyond the exposure incident description.
    6. absent: No explicit statement of danger/severity beyond naming the offense
    7. absent: No stated potential harm beyond describing the offense
    8. absent: No stated severity of harm from the incident is given.
    9. absent: No consequence beyond describing the incident.
    10. absent: No stated severity/consequence beyond describing the offense.
    11. absent: No stated severity or consequence beyond naming crime.
    12. absent: No statement of potential harm beyond describing the offense.
    13. absent: No explicit statement of potential harm/severity beyond the offense name.
    14. absent: No statement of potential harm beyond naming the offense.
    15. absent: No explicit statement of danger beyond describing the offense.
    16. absent: No stated severity beyond describing the exposure incident.
    17. absent: No explicit statement of harm severity.
    18. absent: No stated severity or consequence beyond crime type
    19. absent: no stated severity or consequence to recipients
    20. absent: No stated severity of harm beyond describing the act.
    21. absent: No stated severity or consequence beyond the act itself
    22. absent: no statement of potential harm beyond describing the crime itself
    23. absent: No stated severity of harm beyond the act described.
    24. absent: No statement of potential harm/severity, just description of the crime.
    25. absent: No stated injury or severity beyond the act described.

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. 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 July 2026Via ingestion