An Indiana man was mauled to death by his pet pit bull on Christmas Day, Portage police say. Edward L. Cahill, 40, was discovered on the living room floor by his girlfriend when she returned from visiting relatives for the holiday. Cahill was unresponsive, NBC Chicago reports. Authorities were called to a home in the 5500 block of Tulip Avenue at about 8:14 p.m. Cahill was found dead on the floor covered in blood and with multiple lacerations on his face and arms, the Portage police report. A county coroner pronounced Cahill dead at the scene and determined his cause...