Caitlin Schunn

Police were conflicted on if Jeffrey Gebhardt’s death was a suicide or murder and narrowed their investigation to one suspect.

“I’m 11 and I just helped solve my mother’s murder,” Collier Landry said in A Plan To Kill, airing Sundays at 7/6c on Oxygen.

Margaret Kellis’ family believed that she was involved in the deaths of two other husbands as well as Dallas Kellis’ slaying.

After Tony Vick’s first wife appeared to drown in a bathtub and his second wife went missing, police felt it was just too many coincidences.

Police said Devan Schreiner plotted to kill the father of her child, Jason Schaefer, for months before ambushing him as he delivered mail. 

Bruce Moilanen was sending gifts and flowers to another woman in the months before his wife was shot in the Michigan wilderness.

Girls Gone Wild founder Joe Francis reflected on how he was charged with numerous crimes while building his empire in a new Peacock docuseries, streaming now.

Police believe Jill Blackstone planned to kill her sister, who suffered from hearing and sight loss, for some time before Wendy Blackstone died of carbon monoxide poisoning.

Police believed Camilla Frazier-Tidrow intercepted her father's mail and realized he was about to cut her out of his will.

More than a decade after her two sons were adopted, Kisha Schaberg plotted to reconnect with her biological children and kill off their adoptive parents.