• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock

2

After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup

3

Former U.S. Secret Service agent says bringing your authentic self to work stifles teamwork: 'You don’t get high performers, you get sloppiness'

1

Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock

2

After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup

3

Former U.S. Secret Service agent says bringing your authentic self to work stifles teamwork: 'You don’t get high performers, you get sloppiness'
CybersecurityCrime

‘He blew this case right open’: Reddit tipster identified only as ‘John’ had a strange encounter at Brown University

By
Kimberlee Kruesi
Kimberlee Kruesi
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Kimberlee Kruesi
Kimberlee Kruesi
and
The Associated Press
The Associated Press
Down Arrow Button Icon
December 19, 2025, 9:16 AM ET
brown
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
Add Fortune on Google for similar content.

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.

Recommended Video

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.

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.

___

Associated Press writer Matt OBrien contributed to this report.

Subscribe to Fortune Gulf Brief. Every Tuesday, this new newsletter delivers clear-eyed, authoritative intelligence on the deals, decisions, policies, and power shifts shaping one of the world’s most consequential regions, written for the people who need to act on it. Sign up here.
About the Authors
By Kimberlee Kruesi
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in Cybersecurity

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Cybersecurity

Google DeepMind CEO Demis Hassabis (left) stands on a spiral staircase next to Google DeepMind researcher John Jumper.
NewslettersEye on AI
Defections from Google DeepMind prompt questions about Alphabet’s efforts to stay at the forefront of AI
By Jeremy KahnJune 23, 2026
7 hours ago
Cursor’s 25-year-old CEO turned a Discord server into a talent pipeline to build his $60 billion SpaceX-backed AI company
AIHiring
Cursor’s 25-year-old CEO turned a Discord server into a talent pipeline to build his $60 billion SpaceX-backed AI company
By Sydney LakeJune 23, 2026
9 hours ago
ravi
CommentaryAI agents
Yale School of Management: surveillance pricing is just the beginning. AI agents will be the real test of corporate trust
By Ravi Dhar and Jon IwataJune 23, 2026
14 hours ago
SpaceX’s drop-off sees Elon Musk’s net worth fall $240 billion—roughly the same value as computing giant IBM
InvestingElon Musk
SpaceX’s drop-off sees Elon Musk’s net worth fall $240 billion—roughly the same value as computing giant IBM
By Eleanor PringleJune 23, 2026
14 hours ago
d
EnvironmentConsumer electronics
Almost 4 in 10 Americans have a ‘junk drawer’ full of their old electronics. It’s because of a very specific anxiety
By Eric Williams, Payam Saeedi, Stacey Watson and The ConversationJune 21, 2026
2 days ago
zak
CybersecuritySocial Media
The U.K. just banned social media for kids under 16. The founder of ‘safe TikTok’ says the U.S. is next
By Nick LichtenbergJune 21, 2026
3 days ago

Most Popular

Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock
Banking
Markets tumble worldwide as Fed resets expectations: $400 billion wiped off SpaceX stock
By Jim EdwardsJune 23, 2026
16 hours ago
After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup
Success
After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup
By Orianna Rosa RoyleJune 23, 2026
13 hours ago
Former U.S. Secret Service agent says bringing your authentic self to work stifles teamwork: 'You don’t get high performers, you get sloppiness'
Success
Former U.S. Secret Service agent says bringing your authentic self to work stifles teamwork: 'You don’t get high performers, you get sloppiness'
By Sydney LakeJune 21, 2026
3 days ago
Current price of oil as of June 22, 2026
Personal Finance
Current price of oil as of June 22, 2026
By Joseph HostetlerJune 22, 2026
2 days ago
Meet the 2 men putting New York's $300 billion pension fund in play for the first time in 20 years
Investing
Meet the 2 men putting New York's $300 billion pension fund in play for the first time in 20 years
By Nick LichtenbergJune 22, 2026
1 day ago
By 7 a.m., Bank of America’s CEO has already read 5 newspapers, his email inbox, and hit the gym—he says if you’re late to meetings, you’re ‘selfish’
Success
By 7 a.m., Bank of America’s CEO has already read 5 newspapers, his email inbox, and hit the gym—he says if you’re late to meetings, you’re ‘selfish’
By Preston ForeJune 22, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.