Authorities are seeking the public’s help to track down a new person of interest in the Brown University shooting that took place this weekend.

The Providence Police Department and the FBI released images and video Monday afternoon that show an individual in a dark blue jacket and pants who’s also wearing a dark beanie and a black face mask. A flyer from the FBI referred to this person as a “suspect” and described him as “a male, approximately 5′8” with a stocky build.”

The agency is offering a $50,000 reward for information, which can be submitted to a tipline or this website.

“No amount of information is too small or irrelevant,” FBI Special Agent in Charge Ted Docks said during a Monday press briefing. Rhode Island Attorney General Peter Neronha said he hoped investigators would make progress in the next 24 to 36 hours.

Law enforcement officials also released multiple video clips that capture a person clad in dark winter clothing walking on sidewalks in Providence.