Officials released more footage Tuesday of the person suspected of killing two students and injuring nine others in a shooting at Brown University over the weekend.

The videos released by the Providence Police and Federal Bureau of Investigation are compiled in chronological order and spliced with maps tracing the suspect’s path.

The clips start at around 2 p.m. Saturday, a few hours before the shooting occurred, and show the suspect wearing dark clothing, with a black hat and a mask, walking around the neighborhood just east of the Brown building where the killings took place.

The person of interest walks up and down streets, sometimes with a satchel on, other times not. In one clip, he runs a short distance in the frame. In another, he stands examining the sign for the Rhode Island Historical Society with his hands held behind his back.

The video also shows a clip of the person walking down Waterman street in the minutes after the shooting around 4 p.m.

Providence Police Chief Oscar Perez asked that people try to watch how the person of interest walks, moves their arms, and holds their weight.

“I think those are important movement patterns that will help you identify this individual,” he said at a 5 p.m. press conference.

Perez also asked the public to share any video footage — even from a Tesla — from the area around the university and Waterman Street with authorities.

Law enforcement agents and officers are currently combing through footage and even looking back at video from weeks prior, trying to see if the suspect canvassed the area earlier. Perez said that they know the person of interest was nearby as early at 10 a.m. on Saturday.

“There’s a lot of terabytes that we’re looking at,” Perez said, “and sometimes it’s just a moment that we need … shorter than someone taking a breath.”

Perez and Ted Docks, the special agent in charge of the FBI Boston, both said that at this point that the shooting death of a Massachusetts Institute of Technology professor in Brookline Monday night does not seem to be connected to the shooting at Brown.

Docks said that he had spoken with Massachusetts State Police Colonel Geoffrey Noble about the homicide, and that Noble offered to pass along any information that may be related to the Brown shooting, although there wasn’t evidence that was the case.

A suspect has not been arrested or identified in the Brookline killing.

Officials at the press conference also addressed concerns and criticism that footage from inside Brown had not yet been released.

Rhode Island Attorney General Peter Neronha said that there were many more cameras inside the new part of the building called the Engineering Research Center than in the older section of the building, Barus and Holley, where the shooting took place and the shooter exited.

What footage is inside the building is chaotic, Neronha said, and doesn’t show any images of the suspect.

“Our standard is pretty low,” he said, referring to the quality of the images they were willing to release. “If we thought it was helpful, we would release it.”

While the search for the suspect continues, the city and university will continue to employ increased police presence.

Providence Mayor Brett Smiley said that there have not been any credible threats against the school or city since Saturday’s shooting.

The mayor also noted that another one of the eight victims still in the hospital had been released. One victim is still in critical condition, while five others are critical but stable, and one more victim is stable but still hospitalized.

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