Without a Trace

On February 10, 2008, Maura Murray, a 21-year-old nursing student left university after lying to professors about a death in the family. She takes off in the middle of a snowstorm and police are unable to locate her after finding her vehicle crashed along a snowbank. Twenty years later there have been no breaks in the case, leading authorities to wonder what happened to her. This is Maura Murray's story.

On September 12, 2014, three-year-old William Tyrrell disappeared while playing with his sister at their foster grandmother's house. Despite a decade-long investigation involving more than one thousand leads, hundreds of persons of interest and dozens of searches, no trace of the boy has been found. This is William Tyrrell's story.