The victim was taken to Marin General Hospital where he underwent surgery, Lt. Jamie Scardina said.
The shooting happened around 7:30 p.m. in a parking lot in the 200 block of Drake Avenue. There were 20 to 30 people in the parking lot at the time of the shooting, Scardina said.
The suspect is a black male, 5 feet 9 inches tall with a slim build who was wearing a black hooded sweatshirt, Scardina said.
The sheriff's office is asking anyone with information to call (415) 479-2311 or Crime Stoppers at (800) 222-TIPS.
