Police investigating a deadly shooting at a US university have released a new image and video clips of a “person of interest”.
It comes as the manhunt for a gunman who killed two Brown University students and injured nine more in a classroom continued for a fourth day.
The shooting on Saturday afternoon unfolded on the first floor of the engineering and physics building while exams were taking place.
A law enforcement official said the attacker fired more than 40 rounds from a 9mm handgun in Providence, Rhode Island.
The new image showed a man dressed in dark clothing, wearing a black hat and face mask, walking down a street that day.
In all of the videos made public, the suspect’s face was either covered by a mask or turned away. He is described as stocky and about 5ft 8in (173cm) tall.
Authorities have released a video timeline showing the movements of the person of interest, including of him before the attack, in the hope that someone might recognise him.
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The clips showed a man walking briskly, and at one point running, between 2pm and 3pm local time, along several different streets, about a block away from the building where the attack would later take place.
The shooting happened at 4.03pm, and another clip showed the same person from a distance walking from the building’s car park towards the street, even as police cars with flashing lights arrived at the scene.
The final clip showed the man walking along that street about three minutes after the shooting.
Authorities on Sunday released a man who had been detained in connection with the attack.
Read more:
Video of ‘person of interest’ in Brown shooting
Police have said there was no clear video of the gunman from inside the building.
Attorney general Peter Neronha said there were cameras in the newer part but “fewer, if any, cameras” where the shooting happened “because it’s an older building”.
The attack and the gunman’s escape have sparked concerns about campus safety, including the absence of security cameras, and led to calls for improved door locks.
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More details about victims emerge
The students who were killed were Ella Cook, a 19-year-old sophomore from Birmingham, Alabama, and MukhammadAziz Umurzokov, an 18-year-old freshman from Brandermill, Virginia.
Ms Cook was vice president of the College Republicans club at Brown University and Mr Umurzokov, whose family came to the US from Uzbekistan when he was a child, was an aspiring neurosurgeon.
The Reverend R Craig Smalley described Ms Cook as “an incredibly grounded, faithful, bright light” who encouraged and “lifted up those around her”.
In a GoFundMe post, Mr Umurzokov’s family described him as “incredibly kind, funny, and smart”.
“He always lent a helping hand to anyone in need without hesitation, and was the most kind-hearted person our family knew,” they said.
