24K views · 206 reactions | When a California tech consultant runs for governor, questions about his past emerge — including his ties to a woman at the center of David Coffin’s murder case. Watch “Tech Bro Murders” Tuesday on ID. | Investigation Discovery | Facebook

From ritual killings to nightmarish rampages, these aren’t horror movies—they’re real crimes that struck on the most feared date in the calendar. Watch "The Friday the 13th Murders" on Wednesday on ID and streaming on @HBOMax. | Investigation Discovery

On Friday the 13th, 14-year-old Amber Dubois vanishes. A year later, Chelsea King disappears nearby. As fear spreads, a survivor links the two and exposes a predator hiding in plain sight. Police race to stop a killer before Friday the 13th strikes again. Watch “The Friday the 13th Murders” Wednesday on ID. #TheFridayThe13thMurders | Investigation Discovery

311K views · 3.5K reactions | John Walsh is back on ID, and he needs your help more than ever. All new season of In Pursuit with John Walsh, Wednesday at 10/9c. | Investigation Discovery | Facebook

Exclusive home video & diary entries reveal an even darker truth. Stream O.J. & Nicole: An American Tragedy FREE on ID GO. | Investigation Discovery

1.2K reactions · 165 shares | When a surveillance tape shows someone setting fire to David’s SUV, investigators think it may lead them to his killer. Watch the all new season premiere of On the Case with Paula Zahn, TONIGHT 10/9c only on Investigation Discovery. | Investigation Discovery | Facebook

1.3M views · 16K reactions | A kind old man—or a sadistic predator? Gary Muehlberg hid in plain sight for years. But DNA evidence finally exposed his deadly secrets. Watch #SignsOfAPsychopath Sunday on ID. | Investigation Discovery | Facebook

1.8M views · 24K reactions | Every chilling retelling was another way to control, to shock, to relive the violence he believed he was entitled to. Watch #SignsOfAPsychopath Sunday on ID. | Investigation Discovery | Facebook

8.9K views · 200 reactions | Watch as experts draw on forensic science to solve baffling crimes and other mysteries. Join us tonight at 8/7c for #ForensicFilesII on ID | Investigation Discovery | Facebook