Every week, Heather & Scott will research and discuss a new episode of Unsolved Mysteries Season 3.

On July 12, 2015, outgoing 18-year-old volleyball star Tiffany Valiante was struck by a New Jersey Transit train. Less than a day later, authorities classified her death as a suicide. But Tiffany’s family — and some investigators — believe that she didn’t take her own life, but was instead a victim of foul play.