The King County Sheriff’s Office midweek was continuing to investigate the fatal shooting of a 22-year-old man on West Hill early Sunday morning.

The death of Minh H. Phu of Renton was ruled a homicide by the King County Medical Examiner. He died of multiple gunshot wounds.

A roadside memorial grew early in the week in the 5600 block of South Langston Road on West Hill just outside the Seattle city limits.

Sometime after 1:35 a.m., deputies responded to Langston Road to a report of shots fired. When officers arrived, they discovered Phu in his early 20s shot and sitting in a car.

The Sheriff’s Office learned from witnesses that Phu and a few friends were at a nearby residence celebrating the his birthday when he went outside to charge his cell phone in a friend’s car.

Attempts to revive Phu were unsuccessful and he died at the scene.

So far, deputies can’t say whether the shooting is gang-related. Midweek, they had no suspects, according to Sgt. Katie Larson, a spokeswoman for the Sheriff’s Office.