The victim, now identified as 21-year-old Masir Williams, was shot in the lower back and left forearm on the 2300 block of Oakford Street, Daily Voice previously reported.
He was rushed to Jefferson University Hospital by first responders and placed in critical condition but died from his injuries at 10:17 a.m., police said.
The Streets Department said it was "disheartened" by Williams' death, writing, "Our thoughts are with everyone impacted by this terrible incident."
Twenty-one-year-old Senaaj Jackson is now wanted on an arrest warrant in connection with the killing, police told Daily Voice on Friday.
He is considered armed and dangerous and should not be approached, authorities said. If spotted, call homicide detectives at 215-686-3334. A $20,000 reward is offered for tips that lead to an arrest and conviction.
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