The murder of the Groene family. A deranged pedo named Joseph Edward Duncan was already on the run from the cops for a past sexual assault. He was incredibly charming and manipulative, and was truly pure evil. He camped outside a family's rural home, unseen by them. He picked it out after driving past it and seeing children's toys outside. He watched them from afar, got to know their routine with the intent of kidnapping the children, ten year old Dylan, eight year old Shasta.
Jed found the lock on the door was broken, entered the home in the middle of the night and tied up the mom, dad and teenage son. He put Shasta and Dylan in his car and killed the rest of the family with a hammer.
He travelled around various campsites and cabins with Shasta and Dylan captive, sexually abusing, torturing and raping them. He eventually shot Dylan but Shasta talked him out of killing her. Jed ended up telling her she "taught him how to love"
The scariest part is a cctv footage of Jed and Shasta at a gas station. Because you could easily believe they were just a normal dad and a grumpy daughter if you were an onlooker
Eventually, he took her to a diner where he was finally apprehended when a waitress noticed something was up and Shasta was saved after 7 weeks in his clutches. As he was dragged away, he called to her "promise me you'll visit me in prison" and she said she would. I don't know if she ever did.
Jed was put on death row and found to be guilty of three previous child murders. He died a few months ago from cancer.
But the worst part of it all is how horrible Shasta's life has been afterwards. Drug addiction, in and out of jail, losing her children etc