When a pizza delivery man, Brian Wells, robs a bank while claiming he has a bomb locked around his neck, it turns into one of the strangest cases the FBI has ever encountered. Dennis Murphy has chosen this episode as one of his most memorable episodes. 

A former marine, who once was the hero for a woman in an abusive marriage, is back on ‘Dateline.’ But this time, has his desire to help gone too far? Andrea Canning reports.  

When Brigida Uto arrives at an emergency room, she is near death. While her vital signs are fading, there are no signs of an infection or injury. Doctors, the FBI and local law enforcement are all called in to not only try to solve a medical mystery, but also a horrendous crime..Natalie Morales has chosen this episode as one of her most memorable episodes. 

In one of his most memorable classic episodes, Josh Mankiewicz reports on a kidnapping mystery that changes the lives of a Florida couple.  

Newlywed Dalia Dippolito returns home from the gym to the awful news that her husband has been killed. In a case where almost nothing is as it seems, investigators want to know: Was Dalia diabolical or an unwitting pawn in a hoax gone wrong? Dennis Murphy has chosen this episode as one of his most memorable classic episodes. 

A missionary's wife and mother of three is found dead in her house on Valentine's Day. As authorities investigate, questions surrounding the murder hit close to home. Andrea Canning has chosen this episode as one of her most memorable classic episodes. 

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. 

Lester Holt interviews family members, including the now-grown children of some of the passengers and crew of Flight 93, as they honor the lives and courage that inspired the world on 9/11.Remembering the Heroes of Flight 93: https://www.nbcnews.com/dateline/watch-dateline-episode-heroes-story-flight-93-now-n1278967

It started out with a couple who seemed made for each other: smart, good looking and in love.  But a secret was uncovered, and passion turned to violence.  Then, an elaborate plot to get revenge so twisted and devious, it nearly succeeded. Lester Holt reports in this Dateline classic. Originally aired on NBC on April 6, 2012.

In this Dateline classic, friends and family of Debbie Hawk are left searching for answers when she vanishes. Investigators discover Debbie had planned to reveal secrets and wondered if silencing her was a motive for murder. Keith Morrison reports. Originally aired on NBC on July 19, 2010.