Killers Amongst Us: 19-year-old artistic beauty disappears after car found abandoned on bridge. What happened to Sarah Stern? (Part 5)

19-year-old Sarah Stern, a New Jersey woman disappears. Police find her abandoned car on a bridge with the keys inside. Did she jump off the bridge, committing suicide? Was she kidnapped? Surveillance video has police honing in on a suspect, but then a phone call turns into a smoking gun.