... you can learn from:
Friday the 13th: Part 2 (1981)
Paul: I don't wanna scare anyone, but I'm gonna give it to you straight about Jason. His body was never recovered from the lake after he drowned. And if you listen to the old-timers in town, they'll tell you he's still out there, some sort of demented creature, surviving in the wilderness, full grown by now... stalking... stealing what he needs, living off wild animals and vegetation..
Some folks claim they've even seen him, right in this area. The girl that survived that night at Camp Blood, that... Friday The 13th? She claimed she saw him. She disappeared two months later... vanished. Blood was everywhere. No one knows what happened to her. Legend has it that Jason saw his mother beheaded that night. Then, he took his revenge, a revenge he continued to seek if anyone ever enters his wilderness again.
And by now I guess you all know we're the first to return here. 5 years... 5 long years he's been dorment. And he's hungry. Jason's out there, watching... always on the prowl for intruders... ready to kill... ready to devour... thirsty for young blood.