PHILADELPHIA — Five teenagers fatally beat a man on a subway platform after a friend dared them to hit someone, saying "next person we see we're going to hit," one of the defendants allegedly told police. "We all didn't want to seem like no punk," Ameer Best, 17, told police in a written statement read at a preliminary hearing Wednesday for Best and four co-defendants. Best and the other teens, Kinta Stanton, Arthur Alston, Rasheem Bell and Nashir Fisher, all 16, will be tried as adults on charges of third-degree murder and conspiracy for the March 26 beating, Municipal Court...