On June 13, 2012, 20-year-old Chastity Dollison and her father, Allen Vance, were shot and killed while sitting in their car near Silver Avenue and Elmira Street in San Francisco. Their vehicle had reportedly run out of gas and they were waiting for help when an unknown assailant approached and opened fire. A family friend who was with them survived the attack.

Both Chastity and Allen died at the scene from gunshot wounds.

Did anyone in the area see the car or pedestrians near Silver Avenue and Elmira Street on June 13, 2012, or have information about who might have carried out this attack?