Felonious assault at Nichols Arboretum, near the Peony Gardens, 1610 Washington Heights, A
AI-generated · every claim is source-linkedUniversity of Michigan DPSS published Crime Alert concerning this incident. Full text is preserved from the official page.
- Alerts
- 1
- Response
- —
- Killed
- —
- Injured
- —
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.
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.
Crime Alert 2020-03: Felonious Assault Summary: At approximately 1:30 a.m., an individual was sitting on a bench in the Nichols Arboretum near the Peony Gardens. He heard something behind him, and as he turned around, he was struck over his right eye with a glass bottle. The suspect then stuck a plastic airsoft-type pistol into the victim’s neck and told him to freeze. The victim punched the suspect, knocked him to the ground, and fled. UMPD is investigating this incident. Suspect(s): Younger black male, about 5’10” to 6′ tall. Wearing blue jeans, a red hooded sweatshirt, with a white t-shirt underneath. Two tattoos were visible on the lower part of both forearms. Remember: - Close blinds at night and keep doorwall security bars in place - Keep rooms and apartments locked at all times - Apartment-dwellers should turn on exterior lights at night - Walk with a trusted friend or co-worker when possible - Trust your intuition. If a particular situation makes you feel uncomfortable or unsafe, choose an alternative - Have your keys in hand before you reach your vehicle or residence - If you feel threatened on campus, look for a blue light emergency phone or call 9-1-1 from any phone - Confidential Tip Line 1-800-863-1355 For status updates to this alert, check back regularly and follow us on Social Media
Sourcepresent25/25
Final assessment
All 25 reads agree: it is a numbered U-M Crime Alert stating "UMPD is investigating this incident".
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
- present: It states "UMPD is investigating this incident", naming the University of Michigan police agency as the responding authority.
- present: It says 'UMPD is investigating this incident', naming the police department.
- present: It is a U-M "Crime Alert" stating that "UMPD is investigating this incident", naming the agency.
- present: It is a U-M 'Crime Alert' stating 'UMPD is investigating this incident'.
- present: It says 'UMPD is investigating this incident', naming the University of Michigan Police as the responsible agency.
- present: It is a numbered U-M 'Crime Alert' saying 'UMPD is investigating this incident'.
- present: It is 'Crime Alert 2020-03' and states 'UMPD is investigating this incident'.
- present: It states that 'UMPD is investigating this incident', which identifies the University of Michigan police as the authority.
- present: It says 'UMPD is investigating this incident', naming the University of Michigan police as the authority.
- present: The Crime Alert states 'UMPD is investigating this incident', naming the police department.
- present: Titled 'Crime Alert 2020-03', it states 'UMPD is investigating this incident', naming the police authority.
- present: It says 'UMPD is investigating this incident', naming the police agency.
- present: The Crime Alert says 'UMPD is investigating this incident', identifying the police authority.
- present: It is 'Crime Alert 2020-03' and states 'UMPD is investigating this incident'.
- present: It is "Crime Alert 2020-03" and says "UMPD is investigating this incident".
- present: It says 'UMPD is investigating', naming the University of Michigan Police Department as source.
- present: It says 'UMPD is investigating this incident', naming the issuing police agency.
- present: It states 'UMPD is investigating this incident' under a Crime Alert header.
- present: It is labeled Crime Alert 2020-03 and says UMPD is investigating the incident.
- present: The 'Crime Alert 2020-03' states 'UMPD is investigating this incident', naming the University of Michigan Police.
- present: It says 'UMPD is investigating this incident', identifying the University of Michigan Police as the source.
- present: It is 'Crime Alert 2020-03' and says 'UMPD is investigating this incident'.
- present: It says 'UMPD is investigating this incident', which names the university police as the responding authority.
- present: It is 'Crime Alert 2020-03' and says 'UMPD is investigating this incident', identifying the sender.
- present: It is a numbered 'Crime Alert' stating that 'UMPD is investigating this incident'.
Hazardpresent25/25
Final assessment
Unanimous: it names a "Felonious Assault" in which the victim was struck with a glass bottle and threatened with an airsoft-type pistol.
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
- present: It names a "Felonious Assault" involving a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and airsoft-type pistol.
- present: It names a "Felonious Assault" in which a victim was struck with a glass bottle and threatened with an airsoft pistol.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and airsoft pistol.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and airsoft-type pistol.
- present: It names a Felonious Assault with a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft-type pistol, a specific crime.
- present: It names a 'Felonious Assault' with a glass bottle and a plastic airsoft-type pistol.
- present: It names a 'Felonious Assault' in which a victim was struck with a glass bottle.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' in which a person was struck with a glass bottle.
- present: It names 'Felonious Assault', a victim struck with a glass bottle and threatened with a pistol.
- present: It names a "Felonious Assault" with a glass bottle and airsoft-type pistol.
- present: It names a 'Felonious Assault' involving a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft type pistol, a specific threat.
- present: It names a 'Felonious Assault' involving a glass bottle and a plastic airsoft-type pistol.
- present: It names a felonious assault involving a glass bottle and a plastic airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' in which the victim was struck with a glass bottle and threatened with an airsoft pistol.
- present: It names a 'Felonious Assault' involving a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' with a glass bottle and an airsoft-type pistol.
- present: It names a 'Felonious Assault' involving a glass bottle strike and an airsoft-type pistol.
- present: It identifies a 'Felonious Assault' in which the victim was struck with a glass bottle.
Locationpresent25/25
Final assessment
Unanimous: it places the assault on a bench "in the Nichols Arboretum near the Peony Gardens".
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 places the attack "in the Nichols Arboretum near the Peony Gardens".
- present: It places it 'in the Nichols Arboretum near the Peony Gardens'.
- present: It says the victim was on a bench "in the Nichols Arboretum near the Peony Gardens".
- present: It locates the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: It places the assault on a bench in 'the Nichols Arboretum near the Peony Gardens', a named place.
- present: It places the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: It places the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: It occurred on a bench in the Nichols Arboretum near the Peony Gardens.
- present: It locates the attack on 'a bench in the Nichols Arboretum near the Peony Gardens'.
- present: It locates the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: The attack happened 'in the Nichols Arboretum near the Peony Gardens', a named place.
- present: It places the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: It occurred on a bench 'in the Nichols Arboretum near the Peony Gardens'.
- present: It occurred 'in the Nichols Arboretum near the Peony Gardens'.
- present: It places the assault "in the Nichols Arboretum near the Peony Gardens", a specific named place.
- present: It locates the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: It places the assault 'in the Nichols Arboretum near the Peony Gardens', a named place.
- present: It gives 'the Nichols Arboretum near the Peony Gardens'.
- present: It occurred on a bench in the Nichols Arboretum near the Peony Gardens.
- present: The assault occurred 'in the Nichols Arboretum near the Peony Gardens', a specific named place near campus.
- present: It places the assault on a bench 'in the Nichols Arboretum near the Peony Gardens'.
- present: It locates the assault 'in the Nichols Arboretum near the Peony Gardens'.
- present: It places the victim 'in the Nichols Arboretum near the Peony Gardens'.
- present: It places the assault 'on a bench in the Nichols Arboretum near the Peony Gardens'.
- present: It places the assault 'in the Nichols Arboretum near the Peony Gardens'.
Guidancepresent25/25
Final assessment
All 25 reads find guidance in the reminders, such as walking with a trusted friend and calling 9-1-1 or using a blue light phone if threatened.
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: It advises readers to "Walk with a trusted friend" and call 9-1-1 if threatened.
- present: It advises readers to walk with a trusted friend and 'call 9-1-1' if threatened.
- present: It advises "Walk with a trusted friend or co-worker" and to call 9-1-1 if threatened, which are protective actions.
- present: It advises 'Walk with a trusted friend or co-worker' and to call 9-1-1 if threatened on campus.
- present: It advises readers to 'Walk with a trusted friend' and use blue light phones if threatened.
- present: It advises 'Walk with a trusted friend' and to call 9-1-1 if threatened.
- present: It advises readers to 'Walk with a trusted friend or co-worker when possible' and call 9-1-1 if threatened.
- present: It lists 'Walk with a trusted friend' and calling 9-1-1 from a blue light phone if threatened.
- present: It lists protective tips including 'Walk with a trusted friend' and 'call 9-1-1 from any phone' if threatened.
- present: It advises readers to 'Walk with a trusted friend' and call 9-1-1 if they feel threatened.
- present: It lists protective steps such as 'Walk with a trusted friend or co-worker' and using a blue light phone if threatened.
- present: It advises 'Walk with a trusted friend' and 'Keep rooms and apartments locked at all times'.
- present: It advises readers to 'Walk with a trusted friend' and 'call 9-1-1' if threatened.
- present: It advises walking with a trusted friend and using blue light phones 'if you feel threatened'.
- present: It advises walking with a trusted friend and calling 9-1-1 if you feel threatened.
- present: It advises readers to 'Walk with a trusted friend' and to call 9-1-1 if threatened on campus.
- present: It advises 'Walk with a trusted friend or co-worker when possible', a protective action.
- present: It advises readers to walk with a trusted friend and call 9-1-1 if they feel threatened.
- present: It advises walking with a trusted friend and calling 9-1-1 from any phone if threatened on campus.
- present: It advises 'Walk with a trusted friend' and 'Keep rooms and apartments locked at all times'.
- present: It advises recipients to 'Walk with a trusted friend' and call 9-1-1 or use a blue light phone if threatened.
- present: It advises 'Walk with a trusted friend' and to use a blue light phone or call 9-1-1 if threatened.
- present: It advises 'Walk with a trusted friend' and to call 9-1-1 if threatened on campus.
- present: It advises recipients to walk with a friend and to call 9-1-1 if they feel threatened, protective actions.
- present: It advises readers to 'Walk with a trusted friend' and keep rooms and apartments locked.
Timepresent25/25
Final assessment
Unanimous: it gives a clock time, "At approximately 1:30 a.m.", for the assault.
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
- present: It says the attack occurred "At approximately 1:30 a.m.", giving a clock time for the felonious assault.
- present: It says the assault in the Arboretum happened 'At approximately 1:30 a.m.', a clock time.
- present: It says the assault occurred "At approximately 1:30 a.m.", giving a clock time.
- present: It says the assault happened 'At approximately 1:30 a.m.'.
- present: It gives 'At approximately 1:30 a.m.' as the time the victim was sitting on the bench.
- present: It gives 'approximately 1:30 a.m.' as the time the assault in the Arboretum occurred.
- present: It says the assault in the arboretum happened 'At approximately 1:30 a.m.', giving a clock time.
- present: It says the attack in the Arboretum occurred 'At approximately 1:30 a.m.', a clock time for the incident.
- present: It says the assault happened 'At approximately 1:30 a.m.', a clock time.
- present: It says the assault occurred 'At approximately 1:30 a.m.'.
- present: It says the attack occurred 'At approximately 1:30 a.m.', a clock time.
- present: It gives 'At approximately 1:30 a.m.' as the time of the assault.
- present: It says the assault happened 'At approximately 1:30 a.m.', a clock time.
- present: It says 'At approximately 1:30 a.m.', a clock time.
- present: It gives "At approximately 1:30 a.m." as the time when the victim was attacked on the bench.
- present: It gives 'At approximately 1:30 a.m.' as the time of the assault.
- present: It says the attack happened 'At approximately 1:30 a.m.', a clock time.
- present: It states the attack happened 'At approximately 1:30 a.m.'
- present: It says the assault on the bench happened at approximately 1:30 a.m., giving a clock time.
- present: It says the assault happened 'At approximately 1:30 a.m.', giving a specific clock time for the incident.
- present: It says the assault happened 'At approximately 1:30 a.m.', which gives a clock time.
- present: It gives 'At approximately 1:30 a.m.' as the time of the assault.
- present: It gives 'At approximately 1:30 a.m.' as the time of the assault.
- present: It says the assault in the arboretum occurred 'At approximately 1:30 a.m.', giving a clock time for the incident.
- present: It gives 'approximately 1:30 a.m.' as the time the individual was attacked on the Arboretum bench.
Impactpresent20/25
Final assessment
A clear majority (20 of 25) find impact because the victim "was struck over his right eye with a glass bottle", stating actual injury; five dissenters said no severity or wider danger 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
- present: It says the victim "was struck over his right eye with a glass bottle", stating actual injury.
- present: It reports the victim 'was struck over his right eye with a glass bottle', stating injury.
- present: It reports the victim "was struck over his right eye with a glass bottle", stating physical harm.
- present: It reports the victim 'was struck over his right eye with a glass bottle', stating an injury.
- present: It says the victim 'was struck over his right eye with a glass bottle', stating injury.
- absent: It narrates the blow with a bottle as part of the assault but does not state the injury's severity or broader danger.
- present: It says the victim 'was struck over his right eye with a glass bottle', describing bodily harm.
- present: It states the victim 'was struck over his right eye with a glass bottle', describing injury.
- absent: It describes the victim being struck but never states an injury outcome or severity for others.
- absent: It describes the victim being struck but states no injury severity or potential harm to others.
- present: It says the victim 'was struck over his right eye with a glass bottle', describing bodily injury.
- present: It says the victim 'was struck over his right eye with a glass bottle', stating physical harm.
- present: It says the victim 'was struck over his right eye with a glass bottle', explicit physical harm.
- present: It states the victim 'was struck over his right eye with a glass bottle', explicit harm.
- present: It says the victim "was struck over his right eye with a glass bottle", an explicit injury.
- present: It says the victim 'was struck over his right eye with a glass bottle', a concrete physical harm.
- present: It says the victim 'was struck over his right eye with a glass bottle', conveying physical harm.
- present: It says the victim 'was struck over his right eye with a glass bottle', conveying physical harm.
- present: It says the victim was struck over his right eye with a glass bottle, stating physical harm.
- present: It says the victim 'was struck over his right eye with a glass bottle', conveying injury.
- present: It reports the victim 'was struck over his right eye with a glass bottle', stating actual physical harm.
- present: It says the victim 'was struck over his right eye with a glass bottle', a stated injury.
- absent: It recounts the victim being struck but gives no explicit statement of injury severity or danger.
- present: It says the victim 'was struck over his right eye with a glass bottle', describing physical harm.
- absent: It describes the blow and fake pistol but uses no words stating injury or severity.
Coded by Claude Opus 5.5
Systematic AI judgments with visible reasoning, not human-validated codings.
Background
Key Findings
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.
- Official
Campus Alert Archive. "University of Michigan: Felonious assault at Nichols Arboretum, near the Peony Gardens, 1610 Washington Heights, A." Incident of April 8, 2020. Added July 2026; last updated September 2026. https://campusalertarchive.com/case/university-of-michigan-crime-alert-2020-03-felonious-assault-2020-04-08/
Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.