As detectives investigate people who might've known Melissa, they make the shocking discovery of untested evidence from Melissa’s crime scene.

As Melissa’s cold case team continues through old case files, they shift focus to a new potential suspect who’s already in prison.

An unexpected tip from prison leads to a convicted serial killer as a potential suspect in the cold case investigation of 19-year-old Melissa Witt.

In 1994, Melissa Witt goes missing from a bowling alley. After six weeks of searching, police inform her friends and family of a shocking discovery.