By Jeremiah Hassel At least three people have been reported dead after a gunman opened fire in Falls Township in Bucks County, Pennsylvania, on Saturday — leading to the cancellation of the much-anticipated St. Patrick’s Day Parade. The shooter remains on the loose as officers with the Falls Township Police Department race to determine how many were struck and figure out what happened. Initial reports suggest that there were three casualties and that those were the only people struck. Local reporter Steve Keeley of FOX 29 reported that the shooter may have been involved in a carjacking, steali…