The shooting occurred around midnight Sunday on the 2000 block of Kennedy Street.
Police said was the victim was walking along the block when another man, armed with a gun, approached him and demanded money.
When the 20-year-old tried to run away, police said the suspect shot him.
The victim was struck twice, in the hip and leg, but managed to make his way to a nearby Exxon gas station at Harbison and Torresdale avenues where he called for help.
He was taken to the hospital in serious condition.
Investigators found numerous shell casings on Kennedy Street.
Anyone with information on the shooter should call police.
He had been shot once in the face and was unresponsive.
The victim was taken to Temple University Hospital where he was pronounced dead.
Though a motive is unclear at this time, Small said, the victim was involved in a dispute concerning trash scattered in front of his apartment building prior to the shooting. We re getting information that the victim of this homicide was involved in an argument regarding the trash and the debris that appears to be all over the sidewalk and all over the street, like someone had kicked it or thrown it or just moved it around, Small said.