The Bath School disaster Attack , also known as the Bath School massacre Killing , was a series of violent attacks Attack perpetrated Committing_crime by Andrew Kehoe on May 18 , 1927 , Bath Township , Michigan .

Prior to his timed explosives going off Process_end at the school building Building , Kehoe had murdered Committing_crime his wife and firebombed Attack his farm .

Arriving Arriving at the site of the school explosion Attack , Kehoe died Death when he detonated Attack explosives concealed Hiding_objects in his truck .

Andrew Kehoe , the 55-year-old school board treasurer , was angered by increased Cause_change_of_position_on_a_scale taxes and his defeat Earnings_and_losses in the spring 1926 election Change_of_leadership for township clerk .

Kehoe had a reputation for difficulty on the school board and in personal dealings .

During that period , Kehoe purchased Commerce_buy explosives and discreetly planted Placing them on his property and under the school .

Kehoe murdered Killing his wife Nellie sometime between May 16 and the morning of May 18 , 1927 ; she had just been discharged from the hospital with an undefined illness .

Kehoe had used Using a timed detonator to detonate Attack hundreds of pounds of dynamite and incendiary pyrotol , which he had secretly planted Placing inside the school over the course of many months .

As rescuers began Process_start working Employment at the school , Kehoe drove Motion up , stopped Process_end , and used Using a rifle to detonate Attack dynamite inside his shrapnel-filled truck , killing Killing himself , the school superintendent , and several others nearby , as well as injuring Bodily_harm more bystanders .

Kehoe had apparently intended to blow up Destroying and destroy Destroying the entire school .