A man has been charged with fighting another man who fell onto the tracks at a University City SEPTA station moments before being struck and killed by a train. Chaz Wearing, 40, is charged with involuntary manslaughter, the Philadelphia District Attorney's Office announced Friday. Wearing, who investigators believe is homeless, is currently on bench warrant status for an unrelated strangulation case in Delaware County, investigators said. Wearing's criminal history also includes cases in Clinton and Lycoming counties, according to the District Attorney's Office. New video sent to NBC10 by a law enforcement source shows Wearing arguing with a 38-year-old man....