Police are investigating a shooting in University City involving a University of Pennsylvania student and students from Drexel University. Authorities said the University of Penn student fired 15 shots into an apartment occupied by Drexel students on 44th Street near Pine. Police said the shooting all stemmed from an argument between a Penn student and a Drexel student about their backgrounds. The Penn student, who is Korean, was arguing with the Drexel student, who is Indian, over their backgrounds, police said. "There's some indication that he was accusing him of being from another country, possibly being spies and that’s what...