Nightmare Next Door (2011)

S1E1 Death in Robert's Court

In Portsmouth, VA, a father returns home to discover his 16-year-old daughter has been fatally stabbed. Initially, investigators feel confident about solving the case quickly due to DNA and fingerprints found at the scene. Yet, despite their efforts, the investigation remains stalled for several months. The breakthrough finally comes when a piece of chewing gum leads them to an unexpected suspect.