Lakewood police Lt. Chris Lawler said the shooting happened just after 3 a.m. at the Williamsburg Apartments on Bridgeport Way SW when the two men got into an argument about which gang was better.
A person who heard the gunshots called 911 and said they also saw a man dragging a body in the parking lot. When officers arrived a few minutes later they saw a man come running out of the apartment building and point a gun at the body that was on the ground in the parking lot.
The man yelled that he was going to kill the victim, Lawler said, but it was not clear if the man who had been shot was even still alive at that moment. Officers ordered the armed man to drop the gun and he was taken into custody without further incident.
The 29-year-old victim was declared dead at the scene, but his name has not been released.
Lawler said the suspect, identified as 32-year-old William Horton Jr., admitted to police that he was the shooter.
The victim was a member of the Crip gang and Horton is a Gangster Disciple from Chicago, according to Lawler.
Horton was booked into the Pierce County Jail for investigation of second-degree murder.