It happened around 11:19 p.m. on March 30th.
Investigators say a victim, a 19-year-old woman, was walking in the 1200 block of South 13th Street around when she was approached by an unknown man.
The suspect pulled out a revolver and demanded money, and the woman tried to defend herself with mace.
That's when she was shot in the abdomen.
The suspect is described as a black male in his late teens to early 20s with a 'scraggy' beard or goatee wearing a baseball cap, a black-hooded sweatshirt and a black coat, possibly leather.
Anyone with information is asked to call the South Detective Division at 215-685-1635 or visit the Philadelphia Police website to submit a tip.