Retired Secret Service Agent: Changes will be made. Why did a female agent put her head over Trump's heart

Chris talks with Duval County Sheriff T.K. Waters about Operation Valiant Knights, which caught a former MLB pitcher and 26 other offenders.

Chris interviews Tennessee District Attorney Mark Davidson. and Attorney Jere Mason about the Alissa McCommon case—a case of a teacher accused of raping a twelve-year-old male student.

Chris interviews Sheriff Michael Bouchard of Oakland County, Michigan, surrounding the death of vigilante Boopac Shakur/Robert Lee in Michigan.

Chris Hansen interviews Harford County Sheriff Jeff Gahler about the Rachel Morin case. The mother of five was found dead under suspicious circumstances on a Maryland hiking trail.

Chris interviews Suffolk County District Attorney Ray Tierney about the Gilgo Beach serial killer case.

Chris and Assistant Police Chief Jason Stille discuss the Zachery Shike case of a 26-year-old man enrolling in high school to target underage victims.

Chris Hansen interviews former CIA officer and FBI special agent and author of the book "The Unexpected Spy" Tracy Walder.

Former Pro Wrestler Saves Club From Mass Shooter - True Crime Nation with Chris Hansen

Chris and Elizabeth discuss the 20th anniversary of her rescue and the Elizabeth Smart Foundation.

A Chris Hansen First: Female Accused Of Faking Age To Groom Boy, 13. Terrified Mom of Tryston Wade Speaks Out.

Chris interviews Nashali Alma, the woman who fought off her attacker in a gym.

Nichols' family attorneys, Benjamin Crump, and Chris Hansen, discuss the killing of Tyre Nichols.

An arrest in the Indiana murders of two teens - John Ramsey thinks JonBenet's case could have been solved by now - Carolina Dog Fighting Ring - Rapper Big Pun's sister allegedly assaulted and scammed

Chris Hansen gets in depth with Major Richard Fierro (retired), who most likely saved dozens of lives by tackling and pummeling the Club Q shooter.

One couple thought the shots were a part of the show.

Interview with a Colorado Nightclub Shooting survivor, Barrett Hudson.