Violence erupted at a King of Prussia construction site Wednesday, and today, police are seeking the public's help to apprehend some bat-wielding assailants. --snip-- The victims said they were blocked by numerous union protesters from entering the construction site, and so they drove to the mall area to await police assistance. A short time later, a black sedan pulled up and several men exited with baseball bats, ran up to the two trucks and repeatedly slammed the bats into the windows. As the workers exited the trucks, at least two were then physically assaulted with the baseball bats