Young nursing student Michelle Le had disappeared. Something drew her out to her car. As her loved ones launched a very public effort to find Michelle, investigators began their own methodical search. Was she missing or murdered? (01:27:36)

A young mom, married to her high school sweetheart, vanishes. Did she leave her family to start a new life or was there another reason for her disappearance? Decades later her grown son faced a dark truth at the core of this mystery. (43:54)

It was a mystery that stumped investigators for years. A college student disappeared after a night out clubbing. Her mother thought she was at a sleepover with friends and it took an eagle-eyed detective to find the truth buried in a pile of lies. (43:54)

It was Easter Sunday. The Stock family celebrated at home. Hours later, gunshots turned their farmhouse into a house of horrors. There was an arrest but one tiny clue didn’t fit. This case was far from being solved. (01:27:34)

When Karen Pannell was found stabbed to death, a message scrawled in blood seemed like a beacon that could lead detectives to her killer. But what exactly did it mean? It would take a dogged forensic specialist with a keen eye to unravel the mystery. (43:54)

Celebrity dog trainer Mark Stover and his wife, Linda, built a thriving business and a beautiful home but their dream life didn’t last. An affair led to a bitter divorce. Then Mark vanished in a mystery with the makings of a Hollywood thriller. (01:27:36)