In the year of 1957, a 10 year old boy with the name of Tyler had drowned in a lake. He was bullied and picked on by the athletes and the popular kids. They were throwing him into the lake and taking his clothes and putting them in someone else's cabin so that he wont be able to find them.
camp chrystal lake
This is what he looks like now. He decided to get revenge on them. So he set up booby traps all around their cabins and waited until they got up in the morning to get their surprise.
The most deadly trap was Jason's. Tyler had put spears on his roof and his floor all around the couch, he died as soon as he moved his leg not knowing that there were moton sensors on the couch.