It is a groundbreaking case to determine who is responsible for a shooting in which two Milwaukee police officers were severely injured. The man who pulled the trigger is already behind bars -- but what about the West Milwaukee gun shop that sold the gun? The officers are suing for negligence and want financial compensation from owners of the former Badger Guns store -- and a trial began on Wednesday, September 30th. The lawsuit contends Badger Guns broke the law by encouraging an illegal straw sale.