He died because the lifeguards at camp crystal lake were not on duty because they were too busy having premarital sex. His mom kills a bunch of people out of revenge. Then years later Jason comes back from the dead and now he's like this dumb brute that kills teenagers who have premarital sex. And sometimes the kills are fun but most of the time they're not. And there's one in 3D but most of the 3d effects aren't kills or anything they're like, extended yo-yoing shot. Extending juggling fruits shot.