In June of 1999, a brilliant entomologist vanished into the night after walking home in Idaho Falls. And when police looked into his vanishing, they found many suspicious angles. In a strangely familiar situation from three years earlier, he was assaulted while walking home from a bar. And the last person to see him before he went missing left town that same night, with a troubling discovery in his car coming up in police’s search. So what happened to this man that everyone admired? This is the story of Darwin Vest.