STL Guns: G-141224-DC-Berk-Shooting3

Toni Martin (center) cries out on Wednesday, Dec. 24, 2014 as she talks to police at the scene were her son Antonio Martin, 18, was fatally shot Tuesday Dec. 23, 2014 at a Mobil gas station on North Hanley Road in Berkeley. Photo By David Carson, dcarson@post-dispatch.com

Toni Martin (center) cries out on Wednesday, Dec. 24, 2014 as she talks to police at the scene were her son Antonio Martin, 18, was fatally shot Tuesday Dec. 23, 2014 at a Mobil gas station on North Hanley Road in Berkeley.

Photo By David Carson, dcarson@post-dispatch.com