Caught on Video: Explosion Lifts Roof Off School Gym - NBC Bay Area

    Caught on Video: Explosion Lifts Roof Off School Gym

    An explosion linked to a water heater lifts the roof off a school gym on Tuesday, June 11, 2013. Surveillance video at Santa Ana Valley High School captured the blast as student ran for cover. (Published Tuesday, Jun 11, 2013) An explosion linked to a water heater lifts the roof off a school gym on Tuesday, June 11, 2013. Surveillance video at Santa Ana Valley High School... See More