Chicago - US authorities said yesterday that they were trying to determine how the man who gunned down eight people, including himself, at a suburban Chicago engine plant obtained his weapons.
One day after the attack which claimed four lives and left four others injured, federal agents turned their attention to the source of the weapons cache that enabled convicted felon Willie Baker, aged 66, to wreak so much havoc on Monday.
Baker killed four people and injured four more before killing himself, early on Monday at the International Truck and Engine Corporation in Melrose Park, Illinois.