In this Dateline classic, an 18-year-old woman disappears one night and her boyfriend confesses to being verbally abusive and once kicked her. But he seems to have a solid alibi and there is evidence that points to someone else. Police work is heavily criticized. Dennis Murphy reports. Originally aired on NBC on February 1, 2013. 

In this Dateline classic, a young sister and brother are torn apart when their mother disappears, and an elaborate sting operation traps a most unlikely villain. Keith Morrison reports. Originally aired on NBC on June 14, 2013.

Wife and mother Sherri Dally is handcuffed in a parking lot in front of witnesses on a Monday morning and taken into an unmarked car by a blond woman. But when her family reaches out to police, detectives aren’t able to find any record of the arrest. Where could Sherri be? Resources on emotional abuse: https://www.nbcnews.com/dateline/emotional-abuse-resources-n1260929  

In this Dateline classic, Deede Keller had a loving family, a tight circle of friends and a new man in her life. When she vanished, disturbing clues point investigators to a suspect with a dark secret leading to a case that would provide a twist leaving the courtroom astonished. Josh Mankiewicz reports. Originally aired on NBC on June 7, 2013.

In this Dateline classic, Beth Lochtefeld seemed to find everything she wanted in a man – looks, money and he was crazy about her. But what she saw, was not what she got. Hoda Kotb reports. Originally aired on NBC on July 19, 2013.

In this Dateline classic, the family of 31-year-old Matthew Podolack searches for answers after a mysterious illness sends the healthy, happy amateur hockey player and family man to the emergency room. Keith Morrison reports. Originally aired on NBC on September 27, 2013.

Former NXIVM members tell Kate Snow about life inside the controversial self-help group, and life since founder Keith Raniere’s conviction on charges including sex trafficking and forced labor.

Thomas Randolph strikes back against his accusers in exclusive jailhouse interviews. His trial features revealing and testimony from his accusers, an emotional verdict, and a surprising twist.

Detectives investigating a woman’s murder hit the road to learn about her husband’s 5 other marriages and 3 dead wives. They discover he’s been on trial, in a case that resembles their own.

The murder of a Las Vegas wife and mother pits detectives against her wily husband who has many secrets and four dead wives.