Loading Video…

This browser does not support the Video element.

LOS ANGELES (FOX 11 / CNS) - Authorities on Friday renewed their appeal for public help in solving the killing of a 15-year-old girl gunned down as she waited with her mother outside a hamburger stand in South Los Angeles.

Hannah Bell was shot about 9 p.m. on April 27 at the Best Burger hamburger stand near 77th Street and Western Avenue and died at a hospital.

The girl's mother was among those attending a morning news conference at the LAPD's 77th Street Station, where a $50,000 reward was announced for information that helps solve the crime.

"You're a hero when you come forth and you say something that's going to help somebody,'' Samantha Mays said. "You're a hero -- to me, to my kids, to my family. You will be a hero. You won't be a snitch.''

The suspect was described only as a male wearing a black hoodie, who fled the crime scene on foot. Anyone with information on the case was urged to call police at (323) 786-5113, or (877) LAPD-247.

Portions of video used in this story are restricted to the Los Angeles area.