The suspected getaway driver in the Black Friday shooting outside a Walmart store in San Leandro was arrested Friday after his mother turned him in, police said.

Queron Foreman, 18, of Oakland was the driver of the Buick with three other occupants that pulled up to Christopher Murillo, 21, of San Lorenzo and his two cousins outside the store at 1:50 a.m. Nov. 25, said San Leandro police Sgt. Ted Henderson.

Foreman's mother turned him in about noon Friday, Henderson said.

Detwone Watson, 29, allegedly shot Murillo in the neck outside the store at 15555 Hesperian Blvd. after he and Tony Phillips, 20, of Oakland tried to rob the family members, police said. Murillo was treated for his wound at a hospital and released.

Phillips was detained by Murillo's family and later arrested. Watson surrendered to police Thursday after a four-hour standoff on 106th Avenue in East Oakland.

The fourth suspect, a 16-year-old Oakland boy, was detained and released pending further investigation. His name was not released.

Alameda County prosecutors have charged Phillips and Watson with attempted murder, robbery and attempted robbery, and Foreman faces similar allegations, authorities said.