Ep 4. Kat Mcdonough And Seth Mazzaglia

Kat McDonough and Seth Mazzaglia were a young couple living in Dover, New Hampshire in 2012. They had been together for about a year and a half, and things seemed pretty normal between them. That is, until they made the decision to bring a third party into their relationship: a 19-year-old woman named Lizzi Marriott.

According to McDonough, the plan was for Marriott to join them for a game of strip poker on the night of October 9th. However, things quickly took a dark turn when Mazzaglia began to strangle Marriott. McDonough claims that she stood by and watched, too scared to intervene.

After Marriott was killed, Mazzaglia and McDonough went on with their lives as normal for a few days, even attending a party with friends while Marriott's body lay in their apartment. Eventually, they decided to dispose of her body in the Piscataqua River.

But their plan to cover up their crime fell apart pretty quickly. They had left Marriott's car in a parking lot and her family reported her missing. The police soon found evidence linking the couple to her disappearance, including video footage of them discarding Marriott's body. McDonough was quick to testify against Mazzaglia in exchange for a lighter sentence, and he was ultimately convicted of her murder and sentenced to life in prison.

The episode of Snapped: Killer Couples delves into the twisted world of McDonough and Mazzaglia, exploring the dynamics of their relationship and the events leading up to Marriott's murder. Through interviews with friends, family members, and law enforcement officials involved in the case, the episode paints a chilling picture of two people who seemed to be perfectly ordinary until they committed a heinous crime together.

Viewers will be left wondering how things could have gone so horribly wrong between McDonough and Mazzaglia, and how they were able to rationalize their actions to themselves. The episode highlights the fact that even seemingly normal people are capable of committing terrible acts of violence when pushed to their limits.

Overall, the episode is a gripping exploration of a shocking crime committed by an unlikely couple. It is a must-watch for fans of true crime who are fascinated by the psychology of killers and the relationships that fuel their crimes.