How 1 anonymous tipster cracked the Brown University shooting case
[December 19, 2025]
By KIMBERLEE KRUESI
PROVIDENCE, R.I. (AP) — Information from a tipster who had a strange
encounter with another man on a sidewalk outside Brown University was
key to police identifying the suspect they believe killed two students
at the school and then two days later gunned down a Massachusetts
Institute of Technology professor.
Known only as “John” in a Providence police affidavit, the source is
being hailed by investigators as the key figure who gave law enforcement
the details needed to determine who was behind the Brown shooting, as
well as the killing of a Massachusetts Institute of Technology professor
who was shot in his Brookline home Monday.
Ever since a shooter unloaded more than 40 rounds inside a Brown
engineering building, anxiety and frustration has plagued the
Providence, Rhode Island, community as police appeared no closer to
identifying the person.
Yet on the sixth day of the investigation, the case gathered steam,
ending with police announcing late Thursday they had found the suspected
gunman dead from a self-inflicted gunshot wound.
The tipster, John, was the reason why.
“He blew this case right open," said Rhode Island Attorney General Peter
Neronha of the information provided by the individual that resulted in
finding the gunman nearly 24 hours later.
“When you crack it, you crack it,” he said.
According to police, John had several encounters with 48-year-old
Claudio Neves Valente before Saturday's attack. As police posted images
of a person of interest — now identified as Neves Valente — John began
posting on the social media forum Reddit that he recognized the person
and theorized that police should look into “possibly a rental” grey
Nissan. Reddit users urged him to tell the FBI, and John said he did.
The police affidavit said they learned about the tip on Dec. 16, three
days after the shooting and a day after the tip line was created.
Up until that point, the police affidavit says officials had not
connected a vehicle to the possible shooter.
That detail led them to get more video of a Nissan Sentra sedan with
Florida plates and enabled Providence police officers to tap into a
network of more than 70 street cameras operated around the city by
surveillance company Flock Safety.
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A poster seeking information about the campus shooting suspect is
seen on the campus of Brown University, Wednesday, Dec. 17, 2025, in
Providence, R.I. (AP Photo/Robert F. Bukaty)
The affidavit says John gave investigators additional critical
details: he encountered Neves Valente in the bathroom of the
engineering building just hours before the attack, where John noted
the suspect's clothing was “inappropriate and inadequate for the
weather.”
John also bumped into Neves Valente outside, mere blocks from the
building, where John watched Neves Valente “suddenly” turn around
from the Nissan when he saw John. What ensued was then a “game of
cat and mouse,” according to John's testimony — where the two would
encounter each other and Neves Valente would run away.
At one point, John says he yelled out "Your car is back there, why
are you circling the block?”
“The Suspect responded, ‘I don’t know you from nobody,’ then Suspect
repeatedly asked, ’Why are you harassing me?'” according to the
affidavit.
John told police he eventually saw Neves Valente approach the Nissan
sedan once more and decided to walk away.
“Respectfully, I have said all I have to say on the matter to the
right people,” John wrote on Reddit Wednesday night.
As of Thursday, it's unknown whether John will receive the $50,000
reward the FBI had offered for information about the Brown shooting.
Ted Docks, special agent in charge of the FBI, said it was possible
when asked by reporters.
“It would be logical to think that, absolutely, that individual
would be entitled to that,” he said.
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Associated Press writer Matt OBrien contributed to this report.
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