Cláudio Neves Valente, 48, a former Brown student and Portuguese citizen, is suspected of being responsible for the attack at the university and, two days later, killing the professor at the Massachusetts Institute of Technology (MIT), also Portuguese Nuno Loureiro, in his home in Brookline, a suburb of Boston.
Neves Valente, who attended school with Loureiro in Portugal in the 1990s, was found dead days later in a warehouse in New Hampshire.
The material now released includes audio of a university campus police officer calling the city police at 4:07 pm local time.
“This is the Brown police. We have confirmed shots fired at 184 Hope Street,” the officer said.
“We have a victim, but we don’t know where he is,” he added at the time.
Four minutes later, campus police called back with an update: “We have a description of the suspect, dressed in all black and a ski mask, direction of travel unknown.”
Separately, the city released about 20 minutes of body camera footage from the officer responsible for the initial response to the shooting.
The heavily censored footage shows a chaotic and confusing scene in which officers do not know whether the shooter is still in the building and quickly try to find a safe location to remove students from the building. Backpacks, gloves and other scattered objects can be seen in the hallway.
An officer warns his colleagues: “The shooter may still be in the building, so be careful.”
The city also released audio of communications between agents and intervention operators.
“Attention, this is an active shooter situation. We have multiple victims in this building,” an officer said.
The city released those records today, saying they waited, at the request of the victims’ families, until after a memorial was held last week on Brown’s campus.
According to the US Department of Justice, Neves Valente planned the attack for years and left videos in which he confessed to the murders, but did not indicate any motive.
The FBI (federal police) recovered the electronic device that contained the series of videos during a search of the warehouse where Neves Valente’s body was found.

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