Tracy Smith

A 16-year-old Utah girl dies by suicide, and her friend is charged with first-degree murder.

A woman seeks closure by speaking with her sister and brother-in-law's killer more than 20 years after their deaths.

A year after a young teacher was gunned down outside of her Pennsylvania home, the lack of an arrest has many wondering if the case will ever be solved.

The dangers of anonymous chat apps; a father discovers his 15-year-old daughter planning to run away with a 30-year-old man she met online; a teenage girl is found stabbed to death after making friends online.

A woman speaks out about the person charged with leading her son to suicide through text messages; the verdict on the groundbreaking case.

New witnesses and DNA evidence raise doubts about a convicted murderer's guilt.