Primary / Secondary School, School / University Deliberately set fire at high school extinguished by sprinkler system (San Jose, CA) July 3, 2012 viking210 A small fire at a San Jose high school Sunday evening was deliberately set, according to fire officials. Firefighters found that a side door on a theater building had been set on fire, melting the plexiglass window and damaging siding on the building. The fire had been put out by a sprinkler by the time firefighters arrived on scene. An arson investigator has determined the fire was deliberately set. There were no injuries due to the fire, according to San Jose Fire Capt. Rob.