Toxic

Published: Jan. 15, 2021, 3:59 p.m.

b'In this Dateline classic, Kevin and Morgan Mengel were happy at first, but when the marriage went bad, he went missing. Police wondered if he simply left, but a family\\u2019s relentless pursuit lead to a stunning confrontation and, eventually, the truth. Hoda Kotb reports. Originally aired on NBC December 27, 2013.'