Robert’s. On Dateline NBC’s episode titled “Internal Affairs,” Josh Mankiewicz reports on the murder of Denita. Lizz Melgar, Sandra Melgar's daughter, speaks to Dennis Murphy, a Dateline host. ... 13, 2016 after Frances Hall is sentenced to 2 years in prison for the murder of her husband. Jul 16, 2021 · Starcasm Staff July 16, 2021.. "/>