The Wikipedia article of the day for May 18, 2020 is
Bath School disaster.
The Bath School disaster was a series of violent attacks perpetrated by Andrew Kehoe in Bath Township, Michigan. The attacks killed 38 elementary schoolchildren and 6 adults, and injured at least 58 other people. On the morning of May 18, 1927 – having previously murdered his wife at their farm – Kehoe set off almost simultaneous explosions at his home and at the Bath Consolidated School (pictured). His devices destroyed the farm's buildings and ripped through the north wing of the school. As rescuers began working at the school, Kehoe drove up to the schoolyard and set off dynamite inside his shrapnel-filled truck, killing himself and several others nearby. During the rescue and recovery efforts, searchers discovered 500 pounds (230 kg) of unexploded dynamite and pyrotol in the south wing of the school that had been set to detonate at the same time as the north wing explosions.
