S13/EP3 A badly charred body is found to have been tortured for 8-10 hours. Investigators say the case of Kristel Maestas and Ronald Bell's killer romance still haunts them to this day.

S13/EP3 A well-liked line cook named Cordell Richards was reported missing in the conservative military community of Fort Walton Beach, Florida.

S13/EP2 A neighbor of Cindy Lou Beck, who manipulated Andrew Jondle into the murder of his parents, says the thought that went into the crimes, as well as the fact that the Jondles seemed like good parents, made the situation "atrocious" and "extremely evil."

S13/EP2 Former DA Stan Butterfield says that the Jondle murders likely wouldn't have happened without Cindy Lou Beck. Still, Andrew Jondle was far from an innocent victim: Butterfield recalls at least two alternate plans Andrew had for disposing of his parents' bodies, including using a cattle chute to trample them to nothing.

S13/EP2 Authorities and neighbors agree that Andrew Jondle was manipulated by Cindy Lou Beck — who would pretend to channel spirits — into the murder of his parents.

S13/EP6 As a Detective’s Den member, you’re getting a first look at episode 6 of this season of Killer Couples, not airing for several weeks! In this exclusive, we learn some very disturbing details surrounding the death of two young boys, but their mother is nowhere to be found. “Killer Couples” airs Thursdays at 8/7c only on Oxyge

S13/EP1 Chris Eagen, a neighbor of Barbara Mullenix, says her daughter, Rachel, and boyfriend, Ian Allen, were pushed by rage, and neither would have killed Barbara without the other.

S13/EP1 Although Ian Allen tried to take the blame for killing Barbara Mullenix, investigators knew she had been stabbed with three different knives, and eventually got him to admit his girlfriend, Rachel's, involvement.

S13/EP1 Det. Sgt. David Byington says he and a lot of other veteran investigators, who have seen their share of brutality, were shocked when they saw Barbara Mullenix's body. How could a daughter do this to her mother? they wondered.

S13/EP2 Love and madness drove the murder of David and Marilyn Jondle, a scene one investigator described as "savage." The investigation would uncover shocking secrets to rock the small Oregon town.

S13/EP2 David and Marilyn Jondle took their nest egg to Dallas, Oregon, starting Abundant Life Farm with their three boys, Wayne, Luke and Andrew. They were well liked in the community.

S13/EP1 On the Southern California coast's "riviera," the calm is shattered by a gruesome find: Barbara Mullenix's body is discovered with what appears to be a butter knife sticking out of the eye socket. Police have no ID at first, but hope that knife, as well as a bloody folding knife discovered with the body, might lead them to a suspect.

Elaine Zack, mother of Jeff, says her son had a "hysterical" personality and wanted to join the Israeli air force. He studied Hebrew and probably would have lived if he had stayed in Israel, she says.

A Summit County prosecutor says the George family got a measure of justice with John Zaffino's conviction, but is frustrated that he's never admitted his involvement in Zack's death.

Appeals Court Judge Lynn Slaby dissented with his court's reversal of Cynthia George's conviction, which was sent back to the trial court. There's a small but significant difference between aiding and abetting, and conspiracy and complicity, he says.

Ed George inherited hot night spot The Tangier from his father, and it's where anyone who was anyone would gather. Cynthia, who was always on his arm, came from much humbler circumstances.