Police have obtained a no-bail warrant for 29-year-old Isaac McCuan, police Lt. Brian Addington said. McCuan is listed as a transient but has ties in several east Contra Costa County cities.
The shooting happened at about 1 a.m. at a home in the 2200 block of San Remo Way, where the victim was renting a room.
Police believe the victim, whose name was not being released this afternoon because his family hadn't been notified of his death, had been trying to join the gang that McCuan belonged to.
A member of the gang had allegedly told the victim to assault someone as a way to show his alliance to the gang, but he refused to do it, Addington said.
McCuan allegedly came over to the victim's house and confronted him about it. During the confrontation, McCuan allegedly shot the victim.
When police arrived, they tried to resuscitate the victim with CPR, but he died at the scene.
Police said McCuan has an extensive criminal history that includes assault, gang-related crimes, property crimes and firearms offenses. He is considered a parolee at large, Addington said.
This is the city's fourth homicide this year. At this time last year, there had been five homicides in Pittsburg, Addington said.