Latest in Brown University shooting: Individual seen near person of interest sought

As the search for a person of interest in the Brown University shooting stretched into its fifth day on Wednesday, the Providence Police Department released images of an individual investigators said "was in proximity of the person of interest" who was seen on various security cameras walking around the campus both before and after the deadly attack.

Police said only that they would like to speak to the individual seen near the person of interest.

Regarding the person responsible for the shooting, Rhode Island Attorney General Peter Neronha said during a news conference on Wednesday afternoon: "He will be caught, and it's just a matter of time before we catch him."

Students Ella Cook, 19, and MukhammadAziz Umurzokov, 18, were killed in the shooting, which occurred on Saturday afternoon. Nine other students were injured in the attack.

Earlier Wednesday, the police department released three images of the new person they're looking to speak to and asked for the public's help in tracking the individual down.

During Wednesday afternoon's news conference, Col. Oscar Perez, chief of the Providence Police Department, said the individual crossed paths with the person of interest near the intersection of Hope Street and Benevolent Street, less than two blocks from the Barus & Holley engineering building where the shooting took place.

"All we know is that this person was in the vicinity of the person of interest, and we want to speak with him," Perez said.

Perez added that the person of interest was last seen on security video at the intersection of Pitman Street and Ives Street, about three blocks east of the Barus & Holley building.

When asked by a reporter whether investigators had recovered DNA evidence linked to the suspected shooter, Perez said, "We have found a lot of evidence," referencing "physical evidence" and "DNA evidence" without elaborating.

"There’s a lot of evidence that we’re collecting to ensure that we can find the answer," he said.

Trump criticizes university for having 'so few' cameras

President Donald Trump posted to social media early on Wednesday regarding the ongoing search for a gunman, criticizing the university for having so few security cameras on campus.

"Why did Brown University have so few Security Cameras?" the president wrote. "There can be no excuse for that. In the modern age, it just doesn't get worse!!!"

During a news conference Tuesday night, Col. Perez said the only videos investigators have released so far are from outside the building.

"That's all we have. Not inside, just outside," Perez said.

Neronha added that investigators have found no security video of the gunman inside the school's Barus & Holley engineering building, where the shooting unfolded in a lecture hall.

He said the shooting happened in an old section of the engineering complex.

"There was a major addition put onto that building within the last five years or so. That is a modern building attached to a much older one in the back," Neronha explained. "The shooting occurs in the old part, towards the back, towards Hope Street. In that older part of the building, there are fewer, if any, cameras in that location. I imagine because it's an older building."

Neronha said there are cameras in the newer section of the complex, saying they captured "things like the chaos after the shooting."

"But what they don't show is this person of interest," Neronha said. "So, that's why we haven't released those videos. What you do have are videos from a camera outside the Brown building and other cameras from around the neighborhood that the good men and women of law enforcement located and put together in this montage."

Just after the shooting, which the FBI said occurred at 4:03 p.m. local time, a security video captured the individual emerging onto Hope Street from what investigators described as "lot 42" on the Brown campus, near the Barus & Holley building.

As the individual crossed Hope Street, a Brown University police cruiser with its emergency lights flashing was seen less than a block away from him, pulling up and stopping on Hope Street near the scene of the shooting.

Questions about cameras

Neronha said the Barus & Holley building is on the east edge of the campus, abutting a residential neighborhood.

"It's not in the heartland of the campus, it's not the green, and there are several greens. It’s not any of them," Neronha said. "So, it's right on the edge of the campus, and where the shooting took place is at the very edge of that building on the edge of the campus."

Neronha added, "As those of you who know Providence know, you are very quickly into a residential neighborhood, which is why the video footage you are seeing of this person of interest’s movements pre-and post-shooting are in that neighborhood."

In a statement released late Tuesday night, a Brown University spokesperson said there are more than 1,200 security cameras installed across the campus, specifically in high-traffic areas.

"Brown's security cameras do not extend to every hallway, classroom, laboratory and office across the 250+ buildings on campus," the spokesperson said. "For security reasons, it is not prudent to share where cameras are and are not relative to individual buildings and locations."

The spokesperson added that access to most buildings on campus during the daytime "are open and accessible, while after hours, ID card swipes are required for entry."

Brown University Police Chief Rodney Chatman said at Wednesday's news conference that no officers were posted at the Barus & Holley building at the time of the shooting.

"We did not have a security asset posted inside the building. That is typical for that academic space," Chatman said.

Brown has considerably increased security on campus since the shooting, and the school spokesperson said, "We will do a large-scale, systematic security review of the entire campus."

7 victims still hospitalized

In an update on the conditions of victims who are still being treated at Rhode Island Hospital, officials said one patient remains in critical but stable condition, six others are in stable condition and two victims have been discharged.

Also on Tuesday, police released enhanced surveillance images and video of a person of interest and asked the public for help identifying the individual based on movement patterns, posture and body language.

Authorities said they believe the person of interest was in the area from around 10 a.m. on Saturday, hours before the attack. The individual may have been surveying the neighborhood in advance, investigators said.

"We believe that he was actually casing out the area," Perez said of the person of interest, adding, "We strongly believe that he is a suspect in the incident."

Police said the gunman fled the campus after the shooting. A person of interest was detained and then released by police on Sunday. No charges have been filed and police have not commented on a possible motive.

The FBI described the person of interest as "a male, approximately 5'8" with a stocky build."

Police said reviewing the large volume of video data is time-consuming and that public assistance could help identify key moments.

Officials reported they have received hundreds of tips so far, with nearly 200 considered actionable and still under investigation.

Authorities reiterated that there is no credible or specific ongoing threat related to the shooting, but said increased security measures will remain in place as a precaution while the investigation continues.

ABC News' Alex Ederson contributed to this report.