Dateline@30: Deadly Connection

<p>A terrifying mystery begins when 19-year-old Kenia Monge disappears after heading out to meet her friends. Months later, when Lydia Tillman survives a brutal attack nearby, it becomes clear that the two cases are connected. Keith Morrison has chosen this episode as one of his most memorable classic episodes.</p><p>Tune in to Dateline’s 30th season premiere Friday at 9/8c on NBC.</p>