Douglas died from a gunshot wound to the head, and his death was ruled a homicide, the office said.
Police responded to reports of shots fired about 2:10 a.m. Saturday near the 1400 block of South 304th Street and found Douglas shot in the driveway. He later died at a hospital.
Witnesses said they saw two men running away from the area, and police identified one as 25-year-old Michael Anthony Espinosa.
Officers got a warrant for his arrest, pending formal charges by King County prosecutors, and asked anyone with information about his whereabouts to call 911.
He’s described as 5 foot 8, 185 pounds, bald, with a thin mustache. He has a “Lokos” tattoo above his right eye, “XIII” and “13” on the back of his head, “M Mexican” above his right ear, and “Espinosa” on his right neck.
He’s known as “Joker,” police said.
Douglas and the two suspects got into some sort of dispute in the driveway, but it wasn’t clear about what, investigators said.