You’ve undoubtedly heard of the Virginia Tech, Columbine, and Sandy Hook school murders, but I bet you’ve never heard of the largest school massacre in U.S. history: The Bath School Massacre. What made a well-respected man of the community thread 900 lbs of explosives throughout the ceilings and walls of the school and then slaughter 37 children, four adults, and his wife? In the words of the killer: Criminals are made, not born.