TULSA, Oklahoma - Tulsa police have four people in custody in the shooting death of a Tulsa man Monday night. 

Police say Dujuan Wilson, 19, was shot in the chest at about 9 p.m. at a home in the 2400 block of North Boston Place. He was taken to a Tulsa hospital where he later died.

Police say 18-year-old Dijion Mastin turned himself in Tuesday. Mastin left the residence before police arrived Monday night.

Mastin told police he was picking up a .45-caliber handgun from a sofa in the living room when he accidentally shot Wilson. He described Wilson as a close friend.

He was booked on a complaint of second degree murder and is being held on a $500,000 bond.

Deandre Overstreet, 21; Christopher Williams, 21, and Roland Tolbert, 23, were at the residence when officers responded. They were each booked into Tulsa jail on a complaint of second-degree murder and are being held on $250,000 bond.

Officers say initial reports were that the shooting was self-inflicted.

Police say there were several people in the home at the time and all were taken to the department's detective division to be questioned. Police say the witnesses were not being cooperative. 

Crime scene detectives found a spent shell casing in the living room but did not find a gun, Sergeant Dave Walker said.