A man who was charged with fatally shooting a co-worker in Maryland has been found dead in jail.

Gerard Shields, a spokesman for the Department of Public Safety and Correctional Services, said officials found 47-year-old Cipisirono Cole dead at the Maryland Reception, Diagnostic and Classification Center in Baltimore on Tuesday. He was unable to provide additional details Wednesday, but said the investigation is ongoing.

Cole had been arrested on a murder charge in connection with the shooting death of his co-worker, 34-year-old Darrin Ulysses Johnson Jr., March 3 in the locker room of a Department of Public Works building in Baltimore. Cole turned himself in Saturday after a two-day manhunt.

Cole also faced charges of assault and using a firearm in a violent crime.

Officers who responded to a report of a shooting at the building found Johnson in a locker room area, shot several times, police said. Johnson was taken to Shock Trauma, where he was pronounced dead.

About 100 employees report to the field depot that houses maintenance crews working on water and sewer mains, and their equipment. People must have key cards to access the building.

Public Works Director Rudy Chow said last week that he was unaware of any previous issues at the building.