I literally just watched this. One of the MOST scary things about this...in the beginning after the medics take Jason away and all the lights leave...the camera lingers. Just a bit...in the empty crystal lake. In the darkness. All you hear is crickets. It scary to think your alone in the dark...the place where thet just carted off numerous bodies.
This part always makes me smirk because in a real criminal investigation where multiple horrific murders just took place everyone there isn't just going to simultaneously pack up and leave at the same time lol.