A police chief says there will be no criminal charges against anyone related to an explosion in southern Wisconsin that killed a firefighter and leveled several buildings. Sun Prairie Police Chief Patrick Anhalt said Thursday "There is not probable cause to believe a crime was committed." Sun Prairie firefighter Cory Barr was killed in the July 10 explosion that destroyed a bar he owned, five other businesses and a home. Eleven other people were hurt, including five other firefighters and a police officer. The explosion occurred after a subcontractor installing fiber communication lines struck a gas main. The gas ignited, sending a towering fireball into the night sky. The police chief says the blast occurred after "incomplete and inaccurate information was exchanged and relied upon" by those working on the underground project.