In her first TV interview, convicted murderer Lori Vallow Daybell speaks to Dateline correspondent Keith Morrison. In the exclusive sit down, Lori maintains her innocence after she and her husband Chad Daybell were found guilty of murdering her children, JJ and Tylee. Chad was also found guilty of murder and conspiracy in the death of his previous wife Tammy and Lori was found guilty of conspiring to kill Tammy.

The unexplained death of a beloved chiropractor becomes a criminal investigation when authorities discover she'd been poisoned; nearly a decade after the murder, a court makes a dramatic decision about the young woman at the heart of the case.