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SJU

Phoned active-shooter report at the library determined to be false; no injuries

AI-generated · every claim is source-linked
PAswattingemergency notificationmedium confidence
Confirmed HoaxDetermined to be a hoax. The institutional response is documented because it reveals how the alert system performed under a perceived real threat.

On March 30, 2023, Saint Joseph's University's Office of Public Safety received a false active-shooter report at the Francis A. Drexel Library at 2:42 PM EDT; the first SJUSafe alert was sent at 3:09 PM EDT, 27 minutes later, after officers had cleared the library. During that period, students barricaded themselves in study rooms and hid in bathroom stalls based on rumors spreading through group chats. The university subsequently announced it would change its protocol to send an immediate shelter-in-place alert for any future active-shooter report.

Alerts
1
Response
27 min
Killed
0
Injured
0
Institution
Saint Joseph's University
Private Masters · PA
All SJU cases →
~7,800 studentsOmnilertSJUSafe
Documented Timeline

Alert Sequence

1 message in sequence · 1 verified verbatim

INITIAL ALERTSMS
No emergency on Hawk Hill. The report of an active shooter in Drexel Library has been investigated and was inaccurate. There is no emergency situation on Hawk Hill.
Verbatim SJUSafe text quoted by The Hawk News, note the repetition of 'No emergency on Hawk Hill' that bookends the alert, an unusual rhetorical structure for a campus notification
Sent 27 minutes after the 2:42 PM EDT off-campus 911 call reporting the false shooter, during which students hid in bathroom stalls and barricaded themselves in study rooms based on unofficial rumors
No shelter-in-place alert preceded this 'no emergency' message; the Student Senate publicly called the lack of communication during the incident 'unacceptable'
The alert describes the report as 'inaccurate'; Philadelphia Police later characterized the call as 'probably a prank' amid the spring 2023 swatting wave
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.

No emergency on Hawk Hill. The report of an active shooter in Drexel Library has been investigated and was inaccurate. There is no emergency situation on Hawk Hill.

  • Sourceabsent0/25

    Final assessment

    All 25 reads agree no source is present; no sender, agency, or branded signature identifies who issued this all-clear.

    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. absent: No sender, agency, or branded signature identifies who issued this all-clear.
    2. absent: No sender, brand, or agency identifies who issued this all-clear.
    3. absent: No sender, agency, or branded signature identifies the issuer.
    4. absent: No sender tag, university, or agency identifies who issues the message.
    5. absent: No sender name, agency, or branded signature appears in the text.
    6. absent: No sender, agency, or branded signature identifies who issued this all-clear.
    7. absent: No branded signature, sender tag, or named authority identifies who is sending the message.
    8. absent: No sender name, branded tag, or issuing authority appears in the text.
    9. absent: No branded signature, agency, or institution identifies the sender.
    10. absent: No sender, branded signature, or named authority appears in the text.
    11. absent: No sender, agency, or branded signature appears in this all-clear text.
    12. absent: No sender, branded tag, or authority is identified in the text.
    13. absent: No sender, university name, or agency is identified in the message.
    14. absent: No sender tag, agency, or institution identifies itself in the text.
    15. absent: No sender, agency, or branded signature is named in this all-clear.
    16. absent: No sender, agency, or branded signature identifies who issued this message.
    17. absent: No branded signature, agency, or institution names itself as sender.
    18. absent: No sender, signature, or issuing authority is named in the text.
    19. absent: No sender, branded tag, or named authority appears in the all-clear text.
    20. absent: No sender, university, or agency is named in the text.
    21. absent: No sender, authority, or branded signature is named in the text.
    22. absent: No sender tag, agency, or institution names itself in the text.
    23. absent: No sender, signature, or authority is identified in the text.
    24. absent: No sender tag, agency, or branded signature identifies who issued this all-clear.
    25. absent: No sender, university, or agency is named in the text.
  • Hazardpresent25/25

    Final assessment

    Unanimous that a specific hazard is named, a reported active shooter in Drexel Library, even though it was inaccurate.

    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 references a reported "active shooter in Drexel Library", a specific hazard now corrected.
    2. present: It names a reported "active shooter" that was inaccurate, a specific threat.
    3. present: It names "an active shooter" report, the threat addressed.
    4. present: It names "an active shooter" report, though it says it was inaccurate.
    5. present: It names "an active shooter" report (later found inaccurate), naming the threat.
    6. present: It names "an active shooter in Drexel Library" being reported, a specific threat.
    7. present: It names "an active shooter" report (disconfirmed) in the library, a specific threat.
    8. present: It names "an active shooter" in the report, naming the threat even while denying it.
    9. present: It names a report of "an active shooter" (declared inaccurate), the specific threat referenced.
    10. present: It names "an active shooter" report, though clarifying it was inaccurate.
    11. present: It names a reported "active shooter" in Drexel Library, found inaccurate.
    12. present: It names "an active shooter" while reporting the claim was inaccurate.
    13. present: It names "an active shooter in Drexel Library", though stating it was inaccurate.
    14. present: It names "an active shooter" report, a specific threat, even while saying it was inaccurate.
    15. present: It names "an active shooter in Drexel Library" being denied, a specific threat referenced.
    16. present: It names "an active shooter in Drexel Library", a specific threat, even while saying it was false.
    17. present: It references "an active shooter in Drexel Library", a specific threat now denied.
    18. present: It names "an active shooter" report being refuted, a specific (false) threat.
    19. present: It references a report of an "active shooter", a specific threat, now disproven.
    20. present: It names "an active shooter in Drexel Library", a specific threat being negated.
    21. present: It names "an active shooter" report, even while declaring it inaccurate.
    22. present: Names a report of "an active shooter", though clarifying it was inaccurate.
    23. present: Names "an active shooter" that was reported, even while saying it was inaccurate.
    24. present: It names "an active shooter in Drexel Library", a specific threat, though declared inaccurate.
    25. present: It names "an active shooter" report (found inaccurate), a specific threat.
  • Locationpresent25/25

    Final assessment

    Unanimous that a location is given, Hawk Hill and Drexel Library.

    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 names "Hawk Hill" and "Drexel Library".
    2. present: It locates it "in Drexel Library" on "Hawk Hill".
    3. present: It says "Hawk Hill" and "Drexel Library".
    4. present: It says "Hawk Hill" and "Drexel Library".
    5. present: It references "Hawk Hill" and "Drexel Library".
    6. present: It specifies "Hawk Hill" and "Drexel Library", locations.
    7. present: It names "Hawk Hill" and "Drexel Library", specific places.
    8. present: It names "Hawk Hill" and "Drexel Library".
    9. present: It names "Hawk Hill" and "Drexel Library".
    10. present: It names "Hawk Hill" and "Drexel Library".
    11. present: It specifies "Hawk Hill" and "Drexel Library".
    12. present: It names "Hawk Hill" and "Drexel Library".
    13. present: It names "Hawk Hill" and "Drexel Library", specific places.
    14. present: It names "Hawk Hill" and "Drexel Library", specific places.
    15. present: It names "Hawk Hill" and "Drexel Library".
    16. present: It names "Hawk Hill" and "Drexel Library", specific places.
    17. present: It names "Hawk Hill" and "Drexel Library", specific places.
    18. present: It names "Hawk Hill" and "Drexel Library".
    19. present: It locates the prior report "in Drexel Library" on "Hawk Hill".
    20. present: It names "Hawk Hill" and "Drexel Library".
    21. present: It names "Hawk Hill" and "Drexel Library", specific places.
    22. present: Names "Hawk Hill" and "Drexel Library".
    23. present: Locates it on "Hawk Hill" and in "Drexel Library".
    24. present: It names "Hawk Hill" and "Drexel Library", specific places.
    25. present: It locates it at "Drexel Library" on "Hawk Hill".
  • Guidanceabsent0/25

    Final assessment

    Unanimous that no protective action is given; it only reassures that no emergency exists.

    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: It states no emergency exists but gives recipients no protective action.
    2. absent: It says no emergency but gives recipients no protective action.
    3. absent: It says the report was inaccurate but gives no protective instruction.
    4. absent: No protective action is directed at recipients, only reassurance that there is no emergency.
    5. absent: It states there is no emergency but gives no protective instruction.
    6. absent: It reassures there is no emergency but gives recipients no protective action.
    7. absent: It states there is no emergency but gives recipients no protective action.
    8. absent: It clears the situation and gives recipients no protective action.
    9. absent: No protective action is directed at recipients; it says there is no emergency.
    10. absent: It states there is no emergency but gives recipients no protective action.
    11. absent: It reassures but gives recipients no protective action.
    12. absent: No protective action is directed to recipients; it states there is no emergency.
    13. absent: It reassures of no emergency but gives no protective action.
    14. absent: It reassures but gives recipients no protective-action instruction.
    15. absent: It reassures of no emergency but gives recipients no protective instruction.
    16. absent: It says there is no emergency but gives recipients no protective action.
    17. absent: It says there is no emergency but gives no protective action instruction.
    18. absent: It gives recipients no protective action, only an all-clear.
    19. absent: It gives reassurance but no protective instruction.
    20. absent: It says no emergency but gives recipients no protective action.
    21. absent: It reassures there is no emergency but gives no protective instruction.
    22. absent: Reassures community but gives no protective action.
    23. absent: No protective action is instructed; it lifts concern with no threat.
    24. absent: It declares no emergency but gives recipients no protective action instruction.
    25. absent: No protective instruction is given to recipients.
  • Timeabsent0/25

    Final assessment

    Unanimous that no clock time, date, or recency cue appears in the text.

    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. absent: No clock time, date, or recency cue appears.
    2. absent: No clock time, date, or recency cue appears.
    3. absent: No clock time, date, or recency cue appears in the text.
    4. absent: No clock time, date, or recency cue appears.
    5. absent: No clock time, date, or recency cue appears in the text.
    6. absent: No clock time, date, or recency cue appears in the text.
    7. absent: No clock time, date, or recency cue appears.
    8. absent: No clock time, date, or recency cue appears in the text.
    9. absent: No clock time, date, or recency cue appears.
    10. absent: No clock time, date, or recency cue appears in the text.
    11. absent: No clock time, date, or recency cue appears.
    12. absent: No clock time, date, or recency cue appears.
    13. absent: No clock time, date, or recency cue appears in the text.
    14. absent: No clock time, date, or recency cue appears.
    15. absent: No clock time, date, or recency cue appears.
    16. absent: No clock time, date, or recency cue appears in the text.
    17. absent: No clock time, date, or recency cue appears.
    18. absent: No clock time, date, or recency cue appears.
    19. absent: No clock time, date, or recency cue appears.
    20. absent: No clock time, date, or recency cue appears.
    21. absent: No clock time, date, or recency cue appears in the message.
    22. absent: No clock time, date, or recency cue appears.
    23. absent: No clock time, date, or recency cue appears in the text.
    24. absent: No clock time, date, or recency cue appears in the text.
    25. absent: No clock time, date, or recency cue appears.
  • Impactabsent2/25

    Final assessment

    Absent (23 of 2). An all-clear stating the active-shooter report was inaccurate and there is no emergency, conveying no harm; a tiny minority counted the mention of a shooter report.

    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: States there is no emergency and the active shooter report was inaccurate, conveying no harm or danger.
    2. absent: It states there is no emergency and the active shooter report was inaccurate, conveying no harm or danger.
    3. absent: It states there is no emergency and the active shooter report was inaccurate, conveying no harm.
    4. absent: It states there is no emergency and the active shooter report was inaccurate, conveying no harm or danger.
    5. present: Confirms no emergency and that the active shooter report was inaccurate, an all-clear that explicitly addresses the potential danger.
    6. absent: States there is no emergency and the active shooter report was inaccurate, conveying no harm.
    7. absent: States there is no emergency and the active shooter report was inaccurate, conveying no harm.
    8. present: It states there is no emergency and the active shooter report was inaccurate, conveying the consequence that there is no danger.
    9. absent: States there is no emergency and the active shooter report was inaccurate, conveying no harm or danger.
    10. absent: It states there is no emergency and that an active shooter report was inaccurate, conveying reassurance rather than any harm.
    11. absent: States there is no emergency and the active shooter report was inaccurate, explicitly conveying no harm.
    12. absent: It reports that an active shooter report was inaccurate and there is no emergency, so no danger or harm is conveyed.
    13. absent: States there is no emergency and the active shooter report was inaccurate, conveying no harm or danger.
    14. absent: It states there is no emergency and the active shooter report was inaccurate, explicitly conveying no danger.
    15. absent: The text states there is no emergency and the active shooter report was inaccurate, conveying no danger.
    16. absent: States there is no emergency and the active shooter report was inaccurate, conveying no harm or danger.
    17. absent: It states there is no emergency and the active shooter report was inaccurate, conveying no harm.
    18. absent: States the active shooter report was inaccurate and there is no emergency, so no harm or danger is conveyed.
    19. absent: States there is no emergency and the active shooter report was inaccurate, explicitly conveying no danger.
    20. absent: States there is no emergency and the active shooter report was inaccurate, conveying no harm.
    21. absent: States there is no emergency and the active shooter report was inaccurate, conveying no danger at all.
    22. absent: States there is no emergency and the active shooter report was inaccurate, conveying the absence of any threat or harm.
    23. absent: It states there is no emergency and the active shooter report was inaccurate, so no harm or danger is conveyed.
    24. absent: States there is no emergency and the active shooter report was inaccurate, indicating no harm.
    25. absent: It confirms no emergency and that the active shooter report was inaccurate, stating no harm.

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

About this analysis
Context

Background

On the afternoon of March 30, 2023, the Office of Public Safety & Security at Saint Joseph's University (the Jesuit Catholic university on City Avenue in Philadelphia) received a phoned-in report of an active shooter inside the Francis A. Drexel Library at 2:42 PM EDT. Officers responded immediately and cleared the library, finding no threat. But the first community-wide SJUSafe alert did not go out until 3:09 PM EDT (27 minutes later) and when it did, it simply read 'No emergency on Hawk Hill,' with no prior shelter-in-place message. Students in the library had spent those 27 minutes barricaded in study rooms and bathroom stalls, reacting only to text messages from friends. The Student Senate issued a public statement calling 'the lack of communication with the student body regarding the nature of this incident as it happened was unacceptable.' In response, the university announced it would change its protocol to send an immediate shelter-in-place alert with any future active-shooter report, regardless of preliminary findings. The incident was part of a wave of swatting calls targeting U.S. universities in spring 2023.
Analysis

Key Findings

The 27-minute gap between the 2:42 PM EDT 911 call and the 3:09 PM EDT SJUSafe alert drew a public Student Senate statement and Philadelphia Inquirer coverage
By the time SJU sent its first alert, officers had already cleared the library, meaning students received an 'all-clear' as their first notification, an inversion of the standard alert sequence
Following the Student Senate's public statement, SJU announced it would send an immediate shelter-in-place alert for any future active-shooter report, regardless of preliminary findings
Outcome
Officers cleared the Francis A. Drexel Library and confirmed no shooter was present. Philadelphia Police characterized the call as 'probably a prank,' part of a wave of swatting calls targeting U.S. universities in spring 2023. The university announced it would change its protocol to send an immediate shelter-in-place alert for any future active-shooter report, regardless of preliminary findings.
Provenance

Sources

  1. News
  2. Student Paper
  3. Student Paper
  4. Official
Cite this case

Campus Alert Archive. "Saint Joseph's University: Phoned active-shooter report at the library determined to be false; no injuries." Incident of March 30, 2023. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/saint-josephs-university-false-shooter-2023-03-30/

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

Tags
swattingfalse-shooterhoaxlibraryjesuitcatholicphiladelphiacommunication-failuredelayed-alertprotocol-overhaulprivate-mastersverbatim-confirmedHoax
Added May 2026Updated July 2026Via ingestion