In the early morning hours of Halloween 2019 in Hays, Kansas, Colby Trickle called 911 and said he woke up to his ears ringing and saw his wife, Kristen Trickle, bleeding next to him in the bed. Responding officers found Kristen Trickle, 26, clinging to life. What happened was a mystery.

Nicki Myers Bates was just 7 years old in 2006 when her mother vanished and the man her mom lived with told police he watched her die. That man, William Greer, went on the run, evading authorities for years. Nearly two decades later, Bates is still desperately trying to find her mother's remains.