WEST PALM BEACH, Fla. (AP) — Authorities in West Palm Beach say UAB running back Gregory Bryant has been declared brain dead, a day after he was found shot in a car on Interstate 95 in South Florida.

West Palm Beach Police spokeswoman Lori Colombino said Bryant was declared brain dead at 1 p.m. Sunday. Her statement added the investigation into the shooting of 21-year-old recruit of the University of Alabama at Birmingham is now classified as a homicide.

Colombino says detectives are seeking witnesses to the shooting. A passenger in the car was hospitalized with minor injuries.

Bryant started his career at Notre Dame and spent last season attending ASA College, where he played in just one game.

He was the biggest name in UAB’s first recruiting class since the school restarted its program.