In 2012, Israel Keyes was arrested for the kidnapping of Samantha Koenig. He confessed to murdering her and showed police where to find her body. Then Israel said, "I've got lots more stories to tell." He is known as one of America's most prolific serial killers.

https://linktr.ee/KillerStories

sources:
Oxygen Method of a Serial Killer, S1, E1
Podcast: Murder in America - Israel Keyes part 1 & 2
https://www.biography.com/crime-figure/israel-keyes
https://murderpedia.org/male.K/k/keyes-israel.htm
https://allthatsinteresting.com/samantha-koenig
https://www.seattletimes.com/seattle-news/alaska-serial-killer-told-police-he-targeted-victims-boyfriend/
https://thebrag.com/israel-keyes-serial-killer/
https://dotcomstories.com/israel-keyes-ransom-photo-of-samantha-koenig/
https://www.khq.com/news/fbi-releases-details-of-samantha-koenigs-abduction-murder/article_d5077784-11ed-5998-88fa-0042b550d444.html
https://alaskapublic.org/2012/12/04/police-release-detailed-account-of-koenig-murder/
https://en.wikipedia.org/wiki/Christian_Identity