An 18-year-old was shot to death in North Philadelphia on Wednesday night, police said. The man was shot in the chest in the 1600 block of West York Street at 10:07 p.m., police said. He was rushed in a 22d District patrol car to Temple University Hospital, where he was pronounced dead. Police reported no arrests. Witnesses said the shooting had been committed by three teens who ran from the scene. - Robert Moran