Cold. Calculated. Insanity.The Devil Made Him To It, A Shocking True Story Crime Story of Mass Murder by Rod Kackley tells the story of a man who allegedly killed seven people one blood-soaked night in Kalamazoo, Mich. and the story of one teenage girl who came back from the dead.Something went wrong. Something snapped. Jason Dalton just started killing people the night of Feb. 20, 2016.This is the story of that night.There is no doubt about what happened, the only question is "why?"