GRAYS FERRY (WPVI) -- Police are searching for a suspect who shot and killed a man at a playground in the Grays Ferry section of Philadelphia.The shooting occurred around 2:00 a.m. Sunday at Finnegan's Playground on the 1200 block of South 30th Street.A 35-year-old man was shot in the head. He was pronounced dead at the scene.Witnesses tell Action News the victim lived in the neighborhood.No further details have been released.