False active-shooter call prompts a 19-minute shelter-in-place; confirmed as a hoax

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.

• Sourceabsent0/25

  Final assessment

  Unanimous: no sender, agency, or branded signature identifies who issued this message, so the source is absent.

  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 message.
  2. absent: No sender, brand, or agency identifies who issued this alert.
  3. absent: No sender, agency, or branded signature identifies the issuer.
  4. absent: No sender tag, college, or agency identifies who issues the alert.
  5. absent: No sender, agency, or branded signature appears in the text.
  6. absent: No sender, agency, or branded signature identifies who issued this alert.
  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 identifies who is issuing this alert.
  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 message.
  16. absent: No sender, agency, or branded signature identifies who issued this alert.
  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 is identified in the alert.
  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 message.
  25. absent: No sender, university, or agency is named in the text.
• Hazardpresent25/25

  Final assessment

  Unanimous: it names a possible active shooter, a specific threat.

  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 a "possible active shooter", a specific threat.
  2. present: It names "possible active shooter", a specific threat.
  3. present: It names "possible active shooter", a specific threat.
  4. present: It names "possible active shooter", a specific threat.
  5. present: It names a "possible active shooter", a specific threat.
  6. present: It names a "possible active shooter", a specific threat.
  7. present: It names a "possible active shooter", a specific threat.
  8. present: It names a "possible active shooter", a specific threat.
  9. present: It names a "possible active shooter", a specific threat.
  10. present: It names "possible active shooter", a specific threat.
  11. present: It names a "possible active shooter", a specific threat.
  12. present: It names "possible active shooter", a specific threat.
  13. present: It names a "possible active shooter", a specific threat.
  14. present: It names a "possible active shooter", a specific threat.
  15. present: It names "possible active shooter", a specific threat.
  16. present: It names a "possible active shooter", a specific threat.
  17. present: It names a "possible active shooter", a specific threat.
  18. present: It names "possible active shooter", a specific threat.
  19. present: It names a "possible active shooter", a specific threat.
  20. present: It names a "possible active shooter", a specific threat.
  21. present: It names "an emergency, possible active shooter", a specific threat.
  22. present: Names a "possible active shooter".
  23. present: Names "possible active shooter", a specific threat.
  24. present: It names "possible active shooter", a specific threat.
  25. present: It names a "possible active shooter", a specific threat.
• Locationpresent25/25

  Final assessment

  Unanimous: it locates it at the DMC Heritage Campus, a stated location.

  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 locates it "at DMC Heritage Campus".
  2. present: It locates it "at DMC Heritage Campus".
  3. present: It says "at DMC Heritage Campus".
  4. present: It says "at DMC Heritage Campus".
  5. present: It locates it at "DMC Heritage Campus".
  6. present: It specifies "DMC Heritage Campus", a location.
  7. present: It locates it at "DMC Heritage Campus", a specific place.
  8. present: It names "DMC Heritage Campus" and "the area".
  9. present: It locates it at "DMC Heritage Campus".
  10. present: It locates it "at DMC Heritage Campus".
  11. present: It specifies "DMC Heritage Campus".
  12. present: It names "DMC Heritage Campus".
  13. present: It names "DMC Heritage Campus", a specific place.
  14. present: It names "DMC Heritage Campus", a specific place.
  15. present: It locates it "at DMC Heritage Campus".
  16. present: It names "DMC Heritage Campus", a specific place.
  17. present: It names "DMC Heritage Campus", a specific place.
  18. present: It locates it at "DMC Heritage Campus".
  19. present: It locates it at "DMC Heritage Campus".
  20. present: It locates it "at DMC Heritage Campus".
  21. present: It locates it "at DMC Heritage Campus", a specific place.
  22. present: Locates it "at DMC Heritage Campus".
  23. present: Locates it "at DMC Heritage Campus".
  24. present: It names "DMC Heritage Campus", a specific campus location.
  25. present: It locates it "at DMC Heritage Campus".
• Guidancepresent25/25

  Final assessment

  Unanimous: it instructs people to shelter in place or avoid the area, protective guidance.

  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: It instructs recipients to "shelter in place or avoid the area".
  2. present: It instructs to "shelter in place or avoid the area".
  3. present: It instructs "shelter in place or avoid the area".
  4. present: It instructs "shelter in place or avoid the area".
  5. present: It instructs recipients to "shelter in place or avoid the area".
  6. present: It instructs recipients to "shelter in place or avoid the area", protective actions.
  7. present: It instructs recipients to "shelter in place or avoid the area", protective actions.
  8. present: It instructs to "shelter in place or avoid the area".
  9. present: It instructs recipients to "shelter in place or avoid the area".
  10. present: It instructs recipients to "shelter in place or avoid the area".
  11. present: It instructs recipients to "shelter in place or avoid the area".
  12. present: It instructs recipients to "shelter in place or avoid the area".
  13. present: It instructs recipients to "shelter in place or avoid the area".
  14. present: It instructs "shelter in place or avoid the area until advised", protective actions.
  15. present: It instructs recipients to "shelter in place or avoid the area".
  16. present: It instructs to "shelter in place or avoid the area until advised", protective actions.
  17. present: It instructs "shelter in place or avoid the area until advised".
  18. present: It instructs to "shelter in place or avoid the area".
  19. present: It instructs recipients to "shelter in place or avoid the area".
  20. present: It instructs "shelter in place or avoid the area".
  21. present: It instructs "shelter in place or avoid the area", protective actions.
  22. present: Instructs "shelter in place or avoid the area".
  23. present: Instructs to "shelter in place or avoid the area until advised".
  24. present: It instructs to "shelter in place or avoid the area", protective actions.
  25. present: It instructs to "shelter in place or avoid the area until advised".
• Timeabsent5/25

  Final assessment

  Strong consensus: no clock time, date, or recency cue appears, so timing is absent; a few read until advised as recency.

  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 in the text.
  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; "active" is part of the hazard.
  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. present: It says "is reported" and "until advised", recency cues.
  15. absent: No clock time, date, or recency cue appears; "active shooter" is hazard, not time.
  16. present: It says "is reported" and "until advised", recency cues.
  17. present: It says "until advised", a recency cue.
  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. present: Says "until advised", and "is reported", conveying recency.
  24. absent: No clock time, date, or recency cue appears; "active" is part of the hazard.
  25. present: It conveys recency with "is reported" and "until advised".
• Impactabsent10/25

  Final assessment

  Absent by a narrow 15 to 10 majority: it reports a possible, still-unverified active shooter with shelter or avoid guidance but states no explicit harm; dissenters read the active-shooter label as conveying lethal danger.

  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 reports a possible active shooter described as an emergency and says shelter or avoid the area, framing it as a dangerous situation.
  2. present: This reports a possible active shooter and explicitly labels it a dangerous situation with shelter or avoid guidance, stating the danger.
  3. absent: Reports a possible active shooter being verified with shelter or avoid guidance but states no explicit harm.
  4. present: It reports a possible active shooter and directs shelter or avoidance for safety until advised, framing it as a danger to people.
  5. absent: Possible active shooter being verified with shelter guidance but states no harm or consequence.
  6. absent: This reports a possible active shooter being verified with shelter or avoid guidance but states no explicit harm or severity.
  7. absent: Reports a possible active shooter being verified with shelter guidance but states no actual harm or confirmed danger.
  8. present: Reports a possible active shooter described as a dangerous emergency, explicitly framing the threat as dangerous.
  9. present: Calls it an emergency and possible active shooter described as dangerous situation language with shelter guidance; the labeling of a dangerous situation conveys threat severity.
  10. present: It reports a possible active shooter with shelter or avoid instructions, conveying a potential lethal danger.
  11. absent: Reports a possible active shooter being verified with shelter guidance but states no explicit harm or severity.
  12. absent: It reports a possible active shooter being verified with shelter guidance but states no explicit harm or consequence.
  13. present: A possible active shooter report with shelter in place implies a lethal danger to people.
  14. absent: Reports a possible active shooter being verified with shelter guidance but states no explicit harm beyond naming the hazard.
  15. absent: Reports a possible active shooter being verified with shelter or avoid guidance but states no explicit harm yet.
  16. absent: Reports a possible active shooter being verified and to shelter or avoid, naming the hazard without stating consequences.
  17. absent: Reports a possible active shooter being verified with shelter guidance but states no explicit harm or severity.
  18. absent: Reports a possible active shooter being verified and to shelter, but states no explicit harm or confirmed danger.
  19. absent: Reports a possible active shooter and shelter guidance but states no injury or harm.
  20. absent: Reports a possible active shooter with shelter or avoid guidance but states no resulting harm.
  21. present: Reports a possible active shooter emergency and to shelter or avoid the area, conveying implied lethal danger pending verification.
  22. present: Reports a possible active shooter and urges shelter or avoiding the area, conveying a clearly implied lethal danger.
  23. absent: Reports a possible active shooter with shelter or avoid guidance but states no harm or consequence.
  24. absent: Reports a possible active shooter being verified with shelter guidance but states no confirmed harm or danger.
  25. present: A possible active shooter report with shelter guidance implies a deadly threat to people.