Primary / Secondary School, School / University Sprinklers make the difference in middle school fire (Oak Forest, IL) October 29, 2012 viking210 An electronic device might have been the cause of the fire. “If it wasn’t for the building’s sprinkler system, this place would still be burning,” said Oak Forest Fire Lieutenant Jack Janozik. Custodians were inside the school at the time of the fire, but all evacuated safely. The school’s sprinkler system was essential in snuffing out the flames, and saving the thousands of documents stored in the room. “That saved this building from burning down,” Janozik said.