Classes at Bath Consolidated School began at 8:30 a.m. Kehoe had set an alarm clock in the basement of the north wing of the school which detonated the dynamite and pyrotol he had hidden there at about 8:45 a.m. Rescuers heading to the scene of the Kehoe farm fire heard the explosion at the school building and turned back in that direction. Parents within the rural community rushed to the school. The school building resembled a war zone, with 38 people killed in the initial explosion, mostly children.