THE BRONX - Police say a candy bar is at the center of an investigation into a deadly double shooting that happened Thursday at a Bronx gas station.

Investigators are testing a Snickers bar wrapper for fingerprints they say could belong to the gunman who opened fire at a Shell gas station bodega on Bartow Avenue, killing 35-year-old store clerk Lamine Diop. The suspect also wounded Diop?s friend, 37-year-old Papa Ly.

According to police, the suspect may have been trying to rob the gas station before he opened fire. The suspect is described as a black male in his 20s, and police say he dropped the candy bar before fleeing the scene.

Diop, a Senegal native, is survived by his wife and two young children.

Ly was taken to Jacobi Medical Center, where officials say he is in stable condition.