239 passengers vanished in March of 2014, never to be seen again. Shortly after takeoff, a routine flight becomes a trip from hell when pilots stop responding and the plane disappears from radar.

A Catholic priest was found with his throat slit in his church of 32 years. Did Father Kunz's investigation of sex abuse in the church play a role in his unsolved murder?

10-year-old Lindsey Baum disappeared while walking home alone in a small town in Washington state. Her remains were discovered eight years later, more than 100 miles away.