For over a year, Philadelphia has been plagued by a serial killer dubbed the Plate Glass Killer by the media.? But finally, the police think they've caught a break - a man has been arrested at the site of the most recent murder, covered in the victim's blood.? The man taken into custody is Henry Tyder, the scion of one of the most socially prominent families on Philadelphia's Main Line, a family that possesses the largest tracts of real estate in...