Brown University shooting turns finals week into a citywide manhunt

Overview

Updated May 15

Brown's Dec. 13 shooting evolved from a campus lockdown into an extended manhunt. Gunfire killed two students—Ella Cook and Mukhammad Aziz Umurzokov—and wounded nine others; the initially detained suspect was released, and investigators have used residential and vehicle-camera footage to track the shooter's movements.

The stakes widened midweek when authorities began probing a possible connection to the fatal shooting of MIT professor Nuno F.G. Loureiro in Brookline, Massachusetts. With the suspect unidentified and the search multi-state, Brown is restoring routines, including releasing delayed early-decision admissions, while facing a harder question: what does "open campus" mean when violence is mobile, masked, and potentially multi-site.

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Key Indicators

Students killed

Brown identified the victims as Ella Cook and Mukhammad Aziz Umurzokov.

People wounded by gunfire

Nine students were wounded; officials have continued issuing condition updates as some victims are discharged.

Suspects in custody

The original detainee was released; police continue to search for the masked shooter.

Possible linked homicide under review

Investigators are examining a potential connection to the killing of MIT professor Nuno Loureiro in Brookline, Massachusetts.

Voices

Curated perspectives — historical figures and your fellow readers.

Ever wondered what historical figures would say about today's headlines?

People Involved

Christina H. Paxson

President, Brown University

Continuing crisis leadership as the shooter remains at large; publicly identified the two slain students and addressed ongoing disruptions to campus operations

Brett Smiley

Mayor, Providence

Managing public-safety posture and public anxiety as the manhunt stretches into a second week and the investigation potentially broadens beyond Rhode Island

Oscar Perez

Chief, Providence Police Department

Leading an expanding investigation relying on neighborhood footage and public tips; authorities are now also assessing a possible link to the killing of an MIT professor

Timothy O'Hara

Deputy Chief, Providence Police Department

Public briefings on suspect description and evidence collection

Dan McKee

Governor, Rhode Island

State-level crisis response; political spotlight on gun laws and public safety

Person of interest (name not released)

Suspect under investigation

Detained early Dec. 14; authorities declined details publicly

Nuno F.G. Loureiro

Professor, Massachusetts Institute of Technology (MIT)

Killed in Brookline, Massachusetts; investigators are examining a potential link to the Brown University shooting

Organizations Involved

Brown University

University

Balancing a prolonged manhunt and trauma response with pressure to resume normal operations (including admissions and exams logistics)

Brown is now balancing open-campus culture with post-shooting security reality.

Providence Police Department

Local Law Enforcement Agency

Continuing multi-agency manhunt and evidence reconstruction using residential security footage; investigation now includes reviewing a potential link to a separate homicide in Massachusetts

Providence police ran the manhunt, the briefings, and the handoff into prosecution.

Federal Bureau of Investigation (FBI)

Federal law enforcement agency

Assisted with manhunt and investigative support

The FBI joined the response as federal support for a major public-safety incident.

Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF)

Federal Agency

Assisted with firearms-related investigative support

ATF support points to an early focus on weapon sourcing and ballistics.

Brown University Health

Healthcare System

Reported patient conditions and treated victims

Hospitals became the second battlefield: triage, surgeries, and family reunification.

Massachusetts Institute of Technology (MIT)

University

Community impacted by professor’s killing; case now being reviewed for potential connection to Brown shooting

MIT entered the story after professor Nuno Loureiro was killed in Brookline, prompting investigators to examine a possible link to the Brown University shooting.

Timeline

10 events Latest: December 18th, 2025 · 9 months ago

Tap a bar to jump to that date

December 2025
Police publish a more detailed camera timeline of the masked suspect’s route near campus
Latest Investigation

Authorities described footage showing a masked person moving through nearby streets hours before the attack and calmly walking away moments after, underscoring how heavily the case now relies on neighborhood cameras and public tips.
December 18th, 2025
Investigators probe possible link to killing of MIT professor; Reuters reports suspect identified
Investigation

Authorities began examining whether the Brown shooting connects to the fatal shooting of MIT professor Nuno Loureiro in Brookline; Reuters reported investigators had identified a suspect (not publicly named) and related police activity was seen in Salem, New Hampshire.
December 18th, 2025
Brown releases delayed early-decision admissions as manhunt drags on
Statement

The university proceeded with early-decision notifications after delaying them, acknowledging applicant anxiety while the shooter remained at large.
December 17th, 2025
Brown names the two slain students; hospitals continue condition updates
Statement

President Christina Paxson identified the victims as Ella Cook and Mukhammad Aziz Umurzokov as the campus remained in a prolonged state of disruption and trauma response.
December 16th, 2025
Person of interest detained; shelter order lifted
Investigation

Police say they’re not seeking others; some streets stay closed for evidence work.
December 14th, 2025
First 911 calls reported near Barus & Holley
Force in Play

Gunfire triggers emergency calls as finals activity continues nearby.
December 13th, 2025 • 4:05 PM
Brown issues active-shooter alert and lockdown
Statement

Students told to lock doors, silence phones, and stay hidden.
December 13th, 2025 • 4:22 PM
Casualties confirmed; victims identified as students
Force in Play

Officials confirm two deaths and multiple injuries from gunfire.
December 13th, 2025
Citywide shelter-in-place and massive search begins
Investigation

Hundreds of officers fan out across campus and nearby neighborhoods.
December 13th, 2025
Surveillance video released of suspect figure
Investigation

Authorities release footage seeking tips; suspect described as dressed in black.
December 13th, 2025

Scenarios

Suspect charged quickly; prosecution becomes the next arena

Likely

Discussed by: Reuters; AP; The Washington Post reporting on custody and investigative posture

If police believe they have the right person and evidence aligns (surveillance, forensics, witness accounts), prosecutors will move to file charges and lay out probable cause. The case then becomes a months-long test of what investigators can prove in court versus what the public thinks happened, with early scrutiny on building access during exams and any missed warning signs.

Motive points to a targeted grievance — and Brown’s open-campus model changes permanently

Possible

Discussed by: Providence police statements about investigating why the location was targeted; campus and city officials debating access and security

If investigators develop evidence the engineering building was chosen deliberately (a person, a class, a perceived slight), Brown will face immediate pressure to tighten access controls, alter exam logistics, and expand security staffing—changes that often outlast the immediate facts of the case and reshape student life. The risk is overcorrection: building a high-security campus that still can’t guarantee safety.

Rhode Island’s gun-law fight accelerates — or hardens into trench warfare

Possible

Discussed by: AP reporting on Rhode Island’s strict gun laws and an upcoming assault-weapon sales/manufacturing ban; national coverage framing the political aftermath

If the weapon’s sourcing story becomes politically legible—legal purchase vs. trafficking vs. prohibited possession—state leaders and advocates will seize it to argue for faster implementation, expanded bans, or stronger enforcement. The opposing camp will argue the laws already in place didn’t stop the attack. Either way, the shooting becomes a narrative weapon in a policy battle that was already primed.

Historical Context

3 moments from history that rhyme with this story — and how they unfolded.

2007-04

Virginia Tech shooting

One of the deadliest U.S. campus shootings exposed failures in communication and threat response. It became a national reference point for how universities build emergency alert systems.

Then

Sweeping investigations and institutional reforms followed.

Now

Campus emergency notification and active-shooter protocols changed nationwide.

Why this matters now

Explains why Brown’s alerts, timelines, and decisions will be dissected for years.

2022-11

University of Virginia shooting

A shooting killed students and triggered a campus lockdown and intensive search. The case quickly moved from manhunt to questions about warnings, accountability, and institutional response.

Then

Suspect was identified and taken into custody; classes and events were disrupted.

Now

The university faced sustained scrutiny over safety protocols and threat reporting.

Why this matters now

Shows how the headline shifts fast—from capture to institutional responsibility.

2023-02

Michigan State University shooting

A gunman killed students and wounded others, forcing mass sheltering and a multi-agency response. The aftermath centered on trauma care, campus reopening, and renewed gun-policy conflict.

Then

Campus shut down; vigils and emergency support surged.

Now

The shooting remained a political flashpoint, with persistent debates over prevention.

Why this matters now

A template for the emotional and political aftershocks Brown is entering now.