A partnership built on profit spiraled into paranoia and premeditation. When bleach, a hit list, and a gun entered the picture, it became clear this was no accident—it was an ambush. Watch “The Tech Bro Murders” Tuesday on ID and stream on @HBOMax #TheTechBroMurders | Investigation Discovery

He thought it was a simple job—just paint over a floor. But when Donnie realized what he was covering up, it was already too late to walk away. Watch “The Friday the 13th Murders” Wednesdays on ID and stream on @HBOMax. #TheFridayThe13thMurders | Investigation Discovery

The injuries were brutal. The scene was bare. And whoever did this wanted the whole town to feel it. Watch The Real Murders on Elm Street Wednesday on ID. #TheRealMurdersOnElmStreet | Investigation Discovery