Pamela proceeded to kill many of the camp counselors and campers in later years for vengeance over Jason's drowning. The camp counselors were unaware of what was happening, as they were busy partying and having sex elsewhere at the time. The bullies ran off after realizing their actions.
Jason drowned when his bullies pushed him into Crystal Lake.
Pamela later took a job as a cook at Camp Crystal Lake, where the other campers would frequently bully Jason because of his deformity. Because of this, his mother never took him to school, and was extremely overprotective of him. When the protagonist Alice met his mother Pamela, she recounted how she and her husband had Jason born as a hydrocephalic, making him physically deformed. Jason Voorhees is an indirect antagonist in this film and is only present through flashbacks.