Reported gunshots prompt two-hour lockdown; police found no evidence of a shooting
AI-generated · every claim is source-linkedOn the morning of February 16, 2018, 911 callers reported hearing roughly eight gunshots near Highline College in Des Moines, Washington, triggering a roughly two-hour campus lockdown and a massive multi-agency response. After searching the campus, police found 'zero evidence' of any shooting and lifted the lockdown around 11:40 a.m. PST.
- Alerts
- 3
- Response
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- Killed
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- Injured
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Alert Sequence
3 messages in sequence · 3 verified verbatim
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.
This is not a drill. Close doors, close windows. Police are responding to campus. Do not come to campus if you are on your way.
Sourcepresent15/25
Final assessment
Majority finds the source present; Police are responding to campus names the responding authority, though a large minority sees responders rather than a named sender.
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
- absent: No sender tag or named authority appears, only mention of "Police are responding".
- present: "Police are responding to campus" names the responding authority.
- present: "Police are responding to campus" names police as the responding authority.
- absent: No branded signature or named authority appears; "Police are responding" describes responders, not a sender.
- present: It references "Police are responding", an authority.
- present: It references "Police are responding to campus", a responding authority.
- absent: No sender tag, university name, or named authority appears in the text.
- present: "Police are responding to campus" names the responding authority.
- present: "Police are responding to campus" names the responding authority.
- present: "Police are responding" names a responding authority.
- present: It names "Police are responding to campus", identifying the responding authority.
- absent: No sender or branded signature appears; "Police are responding" describes responders, not the issuer.
- absent: No sender, signature, or issuing authority is identified in the text.
- absent: No sender tag, university name, or agency identifies who sent it.
- absent: No sender, signature, or named authority appears; "Police are responding" describes responders.
- present: It names "Police are responding to campus", identifying the responding authority.
- present: "Police are responding to campus" identifies police as the responding authority.
- present: "Police are responding" identifies the responding authority.
- absent: No sender tag appears; "Police are responding" describes responders, not the issuer.
- present: "Police are responding to campus" identifies police, with the alert implying an institutional sender.
- present: "Police are responding to campus" identifies the responding authority.
- absent: No sender, branded signature, or named authority appears, only that "Police are responding".
- present: "Police are responding to campus" identifies police as the responding authority.
- present: "Police are responding to campus" identifies the responding authority.
- absent: No sender tag, agency, or institution names itself in the text.
Hazardabsent0/25
Final assessment
All 25 reads agree the hazard is absent; not a drill and lockdown instructions name no 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
- absent: No specific threat is named; it only gives lockdown-style instructions.
- absent: It says "not a drill" but names no specific threat or hazard.
- absent: "This is not a drill" names no specific threat or hazard.
- absent: No specific hazard is named in the text; "This is not a drill" does not name a threat.
- absent: No specific threat is named; it only says "This is not a drill" and police responding.
- absent: No specific hazard is named, only "not a drill" and police response without stating the threat.
- absent: It says "This is not a drill" and "Police are responding" but names no specific hazard.
- absent: It says "This is not a drill" but names no specific hazard.
- absent: No specific hazard named; "This is not a drill" does not state the threat.
- absent: No specific threat is named; only a police response and "not a drill" are stated.
- absent: It says "not a drill" but names no specific hazard or threat.
- absent: No specific hazard is named; "This is not a drill" with no stated threat.
- absent: It says police are responding but names no specific hazard.
- absent: No specific threat is named; only "Police are responding" is stated.
- absent: No specific hazard is named, only "This is not a drill" without naming the threat.
- absent: It says only "This is not a drill" without naming the specific threat.
- absent: No specific threat is named; the text states no hazard despite "not a drill".
- absent: No specific hazard is named; the threat is not stated despite police response.
- absent: No specific hazard is named; only response actions and "not a drill" appear.
- absent: No specific threat is named; "not a drill" and door/window actions do not name the hazard.
- absent: No specific hazard is named, only that this "is not a drill".
- absent: No specific threat is named; the text states no hazard despite the "not a drill" warning.
- absent: No specific threat is named; the text states no hazard despite the lockdown.
- absent: It says "This is not a drill" but names no specific hazard in this text.
- absent: "Police are responding" names no specific hazard or threat.
Locationpresent25/25
Final assessment
All 25 reads agree the location is present; it refers to campus.
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
- present: It refers to "campus", a location.
- present: It refers to "campus", a location reference.
- present: It refers to "campus", a location.
- present: It specifies "campus".
- present: It refers to "campus" as the location.
- present: It says "campus", a location reference.
- present: It refers to "campus" repeatedly as the location.
- present: It refers to "campus" repeatedly.
- present: It says police are responding "to campus" and references coming "to campus".
- present: It refers to "campus", a location ("responding to campus", "come to campus").
- present: It says "to campus", a location.
- present: It references "campus", a location.
- present: It refers to "campus" multiple times.
- present: It refers to "campus" repeatedly as the location.
- present: "campus" is referenced as the location.
- present: It says "campus", a location.
- present: It refers to "campus".
- present: It references "campus" as the location.
- present: "campus" is specified ("responding to campus," "come to campus").
- present: It references "campus", a location.
- present: It references "campus", a location.
- present: It refers to "campus", a location.
- present: It says "campus", a location.
- present: It references "campus" as the affected location.
- present: It says "to campus" and "do not come to campus", location references.
Guidancepresent25/25
Final assessment
All 25 reads agree guidance is present; it tells recipients to close doors and windows and not come to campus.
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
- present: "Close doors, close windows" and "Do not come to campus" instruct protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows", "Do not come to campus", protective actions.
- present: It instructs recipients to "Close doors, close windows" and "Do not come to campus".
- present: It instructs "Close doors, close windows" and "Do not come to campus".
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus".
- present: "Close doors, close windows" and "Do not come to campus" are protective instructions.
- present: It instructs "Close doors, close windows" and "Do not come to campus".
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus".
- present: It instructs "Close doors, close windows" and "Do not come to campus".
- present: "Close doors, close windows" and "Do not come to campus" are protective instructions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus".
- present: It instructs to "Close doors, close windows" and "Do not come to campus".
- present: "Close doors, close windows," "Do not come to campus" are protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs recipients to "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: It instructs "Close doors, close windows" and "Do not come to campus", protective actions.
- present: "Close doors, close windows" and "Do not come to campus" are instructions.
Timeabsent1/25
Final assessment
Strong majority finds time absent; most see no clock time or date, with one reading are responding as present 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
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue appears in the text.
- absent: No clock time, date, or recency word appears.
- absent: No clock time, date, or recency cue is present.
- absent: No clock time, date, or recency cue such as "now" appears.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue appears.
- present: "are responding" and "if you are on your way" convey present recency.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue such as "now" appears in the text.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue appears.
- absent: "This is not a drill" is not a time or recency cue.
- absent: No clock time, date, or recency cue is present.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency cue appears; "This is not a drill" is not a time reference.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency word like "now" appears.
- absent: No clock time, date, or recency word such as "now" appears.
- absent: No clock time, date, or recency cue appears in the text.
- absent: No clock time, date, or recency cue appears.
- absent: No clock time, date, or recency word appears in the text.
- absent: No clock time, date, or recency cue appears in the text.
Impactabsent0/25
Final assessment
Unanimous absent. All 25 reads agree it gives protective instructions and notes police are responding but states no specific harm or 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
- absent: Gives protective instructions and says police are responding but states no specific harm or danger.
- absent: It gives protective instructions and says it is not a drill without stating any danger or harm.
- absent: States police are responding and gives protective instructions but names no specific danger or consequence.
- absent: Says it is not a drill and police are responding but states no explicit harm or severity.
- absent: It gives protective instructions and says this is not a drill but states no harm or what the hazard could do.
- absent: Says not a drill and police are responding with precautions but states no harm or what the threat could do.
- absent: Gives protective instructions and says police are responding but states no specific danger or harm.
- absent: Gives lockdown precautions and says it is not a drill but states no harm or stated danger.
- absent: Says it is not a drill and police are responding with protective instructions but states no specific harm or threat severity.
- absent: Says it is not a drill and police are responding but states no specific harm or potential consequence.
- absent: Says it is not a drill and to close doors as police respond but states no specific harm or danger.
- absent: Says it is not a drill and gives closure and avoidance guidance but states no specific danger or harm.
- absent: Says not a drill and gives protective steps for shots fired response but states no explicit harm.
- absent: States it is not a drill and police are responding but names no danger or potential harm.
- absent: Gives lockdown instructions and says police are responding but states no specific danger or potential harm.
- absent: Says it is not a drill and police are responding with closure instructions but states no specific harm or severity.
- absent: It instructs closing doors and not coming to campus but states no specific harm or danger beyond police responding.
- absent: Says not a drill and gives protective guidance but states no specific harm or potential consequence.
- absent: Says police are responding and not a drill but states no specific harm or severity.
- absent: Says not a drill and gives shelter instructions but states no explicit danger or harm.
- absent: It says not a drill and police responding with shelter instructions but states no specific harm or danger.
- absent: Says police are responding and gives shelter instructions stressing it is not a drill but states no specific harm.
- absent: Says it is not a drill and police are responding with precautions but states no stated danger or potential consequence.
- absent: Orders doors and windows closed and warns against coming to campus but states no specific harm or how dangerous the threat is.
- absent: Says this is not a drill and police are responding but states no danger, harm, or severity.
Systematic AI judgments with visible reasoning, not human-validated codings.
About this analysisBackground
Key Findings
Sources
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Campus Alert Archive. "Highline College: Reported gunshots prompt two-hour lockdown; police found no evidence of a shooting." Incident of February 16, 2018. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/highline-college-shots-fired-lockdown-2018-02-16/
Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.