Brown University shooting facts
170
Ṁ38k
Jan 12
99.4%
Shooter dies prior to capture
99%
Suspect is linked to another shooting
98.4%
Shooter a current/former Brown student
98.3%
Shooter is connected to MIT professor shooting
86%
Shooter is a white male
82%
Shooter’s motive is related to physics
78%
Trump uses this shooting to crack down on immigrants, crime, or “the left”
76%
Shooter is not motivated by politics
43%
Shooter a current or former Brown employee
28%
Shooter had right-wing politics
28%
Shooter had left-wing politics
19%
Shooter has a manifesto
18%
At least one victim specifically targeted
10%
At least 3 students killed
10%
The shooter is classified as an nihilistic violent extremist
6%
Shooter is not caught by 12/25
6%
At least one other perpetrator/conspirator involved
6%
Is a resident of Rhode Island
5%
Shooting was a targeted attack on Ella Cook.
5%
Shooter used an assault weapon

https://www.browndailyherald.com/article/2025/12/active-shooter-on-campus-department-of-public-safety-reports

Resolution by majority of credible media reports at market expiry as judged by me; I won't trade on my own answers.

  • Update 2025-12-15 (PST) (AI summary of creator comment): If most information remains uncertain at the original market expiry date (Jan 12, 2026), the deadline will be extended for questions that remain uncertain.

  • Update 2025-12-17 (PST) (AI summary of creator comment): For the purposes of resolving whether a victim was specifically targeted, a victim is defined as someone who was physically harmed in the attack.

  • Update 2025-12-18 (PST) (AI summary of creator comment): - Deadliest shooting: Defined as occurring in the US (current 2025 record: 7 deaths).

    • The creator is waiting for further hospital discharges to rule out the possibility of the death count exceeding this record before resolving.

Get
Ṁ1,000
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bought Ṁ50 YES
bought Ṁ25 NO

@Balasar What does this mean "motive related to physics"?

bought Ṁ25 YES

@AdamBraff PhD students often classified as employees, no?!

@bens he didn’t last very long. I suspect we’ll learn more about what he did that year and whether he worked as a TA or paid researcher etc

bought Ṁ150 NO

@nonnihil He flew to Providence from Miami in October, does that count as a resident of Rhode Island?

bought Ṁ5 YES

@JoshuaHedlund Technically shooter wasn't caught, so would this resolve YES?

sold Ṁ10 YES

@FecalAbhuman (I took the opposite side and bet on it earlier)

While a market clearly cpuld choose to count death differently, it seems way more intuitive to include "weve recovered their body" under caught unless told otherwise.

bought Ṁ200 YES
bought Ṁ250 NO

Col. Perez said the suspect worked alone and the killings were not antisemitic in nature. https://www.nytimes.com/live/2025/12/18/us/brown-shooting-suspect/5b9eabe4-a75b-51a1-b862-f5d6a52acbe8?smid=url-share

bought Ṁ350 YES

He was a former Physics PhD at Brown

bought Ṁ10 NO

@spiderduckpig how does that make his motive related to physics

@Bayesian possibly professional jealousy of his much more successful classmate and/or anger at the program (and building) from which he dropped out

bought Ṁ75 NO

Col. Oscar Perez, the chief of police in Providence, R.I., identified the suspect as Claudio Neves Valente, 48, a Brown student and Portuguese national, whose last known address was in Miami.

sold Ṁ294 YES

How does Hispanic white male resolve?

bought Ṁ10 NO

@spiderduckpig Nationality does not equal ethnicity

bought Ṁ10 NO

@spiderduckpig Also portuguese are not hispanic, legally they are white as per census

bought Ṁ100 YES

@Bandors Wait but then why are you buying NO?

@spiderduckpig I think it could have been a portuguese national but not portuguese ethnicity

sold Ṁ19 NO

@nonnihil If the link to the MIT shooting is confirmed, does that affect the "at least one victim was specifically targeted" markets? I'm assuming that's only for the shootings that took place directly on Brown University's campus?

bought Ṁ100 NO

Im assuming dead counts as "caught" for the sake of "shooter is not caught..."

At the suggestion of folks in the comments, I'm going to close out:
- FBI asks the public for tips (this happened on Monday)
- At least one death, (this happened immediately)
- Caught by the 16th (this time window passed yesterday)

I'll leave open the higher-death-count ones until I see a report the victims are out of the hospital, but those could also resolve soon.

@nonnihil why not close out "shooting is the deadliest of 2025"

@DanzoAlerantos
(1) "The deadliest shooting" could mean just in the US, rather than anywhere in the world;
(2) According the gun violence network, the deadliest shooting in the US in 2025 killed just 7 people;

(3) As of this afternoon six people remain hospitalized, some still in critical condition;

(4) If everyone currently hospitalized died, that would be 8 people.

So I'm waiting until another person is released from hospital (I assume that's tomorrow-ish).
It's an arbitrary line, but prudence requires that I draw it somewhere.

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