Law enforcement expert warns early details ‘often change’ as manhunt intensifies at Brown University

As authorities persist in their hunt for a suspect linked to a tragic shooting at Brown University, which claimed at least two lives and injured nine others, a law enforcement expert underscores the importance of validating early information, which is often incomplete or contradictory.

“In such incidents, facts can evolve, sometimes swiftly,” explained Jason Pack, a retired FBI Supervisory Special Agent with 21 years of experience. “Initial details come from various sources who may be under stress, and it’s crucial for law enforcement to confirm each detail before they act on it or make it public.”

He noted that officers are tasked with one of the toughest aspects of policing at this moment—methodically clearing buildings that are on lockdown.

Pack further described the officers’ mission as “slow, deliberate, and perilous work.”

Crime scene tape blocks off streets near Brown University as investigation continues in Providence, R.I., Saturday, Dec. 13, 2025.

Amid ongoing investigations in Providence, Rhode Island, crime scene tape cordons off streets surrounding Brown University. (Andrea Margolis/Fox News Digital)

“Every hallway, stairwell, classroom, and office must be treated as a potential threat until it’s been cleared,” Pack emphasized.

An unidentified male gunman was last seen leaving the Barus & Holley engineering building at the prestigious Rhode Island university after the shooting at about 4 p.m.

Multiple local law enforcement agencies, along with the FBI and U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) are investigating. Officials have said the alleged shooter was dressed in black.

A law enforcement official walks past articles of clothing on a sidewalk near an entrance to Brown University, Saturday, in Providence, R.I., during the investigation of a shooting.

A law enforcement official walks past articles of clothing on a sidewalk near an entrance to Brown University Saturday in Providence, R.I., during the investigation of a shooting. (AP Photo/Steven Senne)

Pack said officers are “moving methodically, often in low light, with limited information and with the understanding that someone inside those buildings may be frightened, hiding or unable to communicate clearly.”

“That requires discipline and restraint, not speed,” he said, adding that the search may extend into Sunday. “This is why timelines stretch and why you may hear updates that evolve over the night. Law enforcement is balancing two responsibilities at once — moving fast enough to protect lives but slow enough to make sure nothing is missed.”

Law enforcement near an armored state police vehicle at Brown University, following a shooting incident on campus on Saturday, Dec. 13, 2025.

Law enforcement near an armored state police vehicle at Brown University following a shooting Saturday on campus. (Andrea Margolis/Fox News Digital)

Pack said law enforcement’s goal is “simple but not easy.”

“Make sure every space is safe, every person is accounted for and that the threat is fully resolved before restrictions are lifted,” he said.

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