Brown University shooting facts
176
Ṁ42k
Jan 12
99%
Shooter is a white male
98.4%
Shooter a current/former Brown student
98%
Shooter is connected to MIT professor shooting
98%
Suspect is linked to another shooting
97%
Trump uses this shooting to crack down on immigrants, crime, or “the left”
95%
Shooter dies prior to capture
81%
Shooter is not motivated by politics
57%
At least one victim specifically targeted
56%
Shooter’s motive is related to physics
40%
Trump cracks down on Portuguese people in the US
32%
Shooter had right-wing politics
28%
Shooter had left-wing politics
24%
Shooter a current or former Brown employee
20%
Shooter has a manifesto
11%
The shooter is classified as an nihilistic violent extremist
9%
Is a resident of Rhode Island
8%
At least 3 students killed
6%
At least one other perpetrator/conspirator involved
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.

  • Update 2025-12-19 (PST) (AI summary of creator comment): Creator will wait before resolving answers despite new information from the press conference, citing authorities' previous errors in suspect identification. Resolutions will not be made extremely quickly - patience will continue to be applied as it has been throughout the market.

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An eventful evening! Seemed at times like the reporters asking questions at the RI press conference were reading off of this list!

I'm going to wait a bit before churning through resolutions, given the authorities' impressive abilities to point at the wrong suspect, but it sure seems like this is the guy. But don't expect I'm going to resolve everything extremely quickly -- patience has served us well in this market so far. If you added one of these answers, especially feel free to suggest how your answer should be interpreted and resolved.

I lived for several years in Brookline, and did a physics minor at MIT in the late 90s, so this all is suddenly quite close to home. What an odd turn of events!

bought Ṁ10 YES

Are the Portuguese white? The greatest thread in the history of manifold, closed after 12,457 posts.

bought Ṁ50 YES
bought Ṁ25 NO

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

@bens When I wrote it, I conceived of it as something where the primary desire was in targeting either the Brown physics department specifically or the field of physics more generally, as opposed to just generically Brown students, a particular individual, or some unrelated political cause. I think it should resolve YES.

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

@bens up to the creator to judge this, I'll just add that Brown community received this by email from Pres Paxson: "Neves Valente was enrolled at Brown as a graduate student from Fall 2000 to Spring 2001, but he has no active affiliation with Brown and has not been affiliated with Brown since 2003. He was not a current student, was not an employee and did not receive a degree from the University, attending for only three semesters as a graduate student until taking a leave in 2001 and formally withdrawing effective July 31, 2003."

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.

@FecalAbhuman I agree with @Yakushi12345 that "caught" includes recovery of body

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?

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