On Friday, June 13, 1946, a boy named Jason Voorhees was born. He lived near Camp Crystal Lake with his mother Pamela for 11 years until the summer of 1957, when he drowned in Crystal Lake. He died due to the negligence of two camp councselors who decided to fool around rather than watch the children. His death drove poor Pamela over the edge. She proceeded to start fires and perform other terrorist acts in an attempt to close the camp. In her mind, she was doing the world a favor by keeping other children from dying at the camp.
Despite Pamela's efforts, the camp was re-opened numerous times. Finally, the unhinged Mrs. Voorhees started murdering camp counselors. By that time, she could not differentiate between them and the counselors from years ago and held them all accountable for her son's death. Her killing spree claimed ten lives before she was decapitated by one of the counselors, Annie, the sole survivor. Unfortunately for Annie, she was murdered by an unknown assailant a few months after the massacre, and the case was never solved.
A few years later, Camp Crystal Lake was re-opened, and the murders began again. Somehow, a hulking Jason Voorhees had returned from the grave and was killing everyone around Crystal Lake. The deformed Jason masked his hideous visage with a pillow case pulled over his head. This brutal killer was brought down by a female counselor who cleaved him with a machette. Unsurprisingly, Jason did not die from the machette wound, and the murders soon began again. Jason took a hockey mask from the corpse of one of his victims, donned it, and from that point on was not seen without the mask. Many more people died before an axe wound to the head seemed to kill the brute.
Jason's body was carted to the local morgue where he did, of course, revive. He carved a bloody trail straight back to Crystal Lake, but he was brought down by a twelve-year-old boy named Tommy Jarvis who freaked out and began hacking into Jason with a large machette. Jason was dead and buried, but poor Tommy went insane.
Tommy Jarvis spent the rest of his childhood being transferred from one institution to another until finally ending up at a home near Crystal Lake. Soon after, "Jason-style" murders began again. Everyone immediately suspected that Tommy had flipped out and was emulating the psycho Jason. It was discovered that Jason Voorhees was not the killer this time, but neither was Tommy. A local man had gone crazy after the murder of his son, and he was venting his rage by pretending to be Mr. Voorhees.
Still haunted by the memory of Jason, Tommy decided to destroy the body of his nemesis. Thus, Tommy returned to Crystal Lake and dug up Jason's body. In a fit of rage, he began stabbing the corpse with a large iron spike, but as Tommy prepared to burn the body, a bolt of lightning struck the spike, and Jason Voorhees re-animated.
Tommy eventually succeeded in trapping Jason at the bottom of Crystal Lake. Of course, Jason did not remain there, but was accidentally freed by a young psychokinetic woman. Once again, he began killing everyone at Camp Crystal Lake that he could. Eventually, he was dragged back to the bottom of the lake, but a few years later, a passing boat's anchor snagged his body and pulled it into some submerged cables. A jolt passed through the body, and Jason came rushing to the surface.
Jason rode on the boat to the river and out to sea. He climbed onto a cruise ship and began killing everyone aboard. The ship sank, and Jason went with the survivors to Manhattan where he ran amok until being killed in the sewers.
Years later, murders once again started at Camp Crystal Lake. The FBI sent a special team to hunt the killer, and Jason Voorhees was blown to pieces. The FBI gathered up all the parts of his body and returned to Washington D.C. to study them. Once there, Jason's spirit possessed one of the agents and headed straight back to Crystal Lake.
Jason was forced to jump from body to body as only a Voorhees could sustain his spirit. He tried to possess his baby relative, but he was stopped at every turn. Finally, he was able to inhabit the dead body of his sister and return to his full terrifying strength. However, he was killed and his soul was sent to hell where, to this day, he is thought to remain.
This demonic entity was confined to the area surrounding Crystal Lake. Jason was able to leave the area for short times, but always headed back at the first opportunity. While on Earth, Jason has been effectively immortal. Serious wounds have had little effect on the body, resulting in a nearly unstoppable creature.
The entity inside Jason Voorhees is utterly evil. It cannot be killed by conventional means, and it passes that on to its host. The demon is about a foot and a half in length and resembles a skeletal lizard with only two legs. It is rarely seen, as it resides inside the heart of Jason. If Jason's body is utterly destroyed, the demon can possess any other human being. Unfortunately for the demon, other bodies are not as functional as Jason's. Thus, it must continuously switch from body to body. If the demon can enter the body of a blood relative of Jason Voorhees, then it regains full strength and once again looks like the hulking monstrosity known as Jason.
What is not known is how much of the real Jason's personality survives. It is entirely possible that "Jason Voorhees" is solely a corpse animated by a demon and is in no way influenced by the long dead child. If this is the case, then Jason Voorhees is not a murderer, his body is simply being used by one of the hellspawn. At times Jason has shown some recognition for others, such as his mother Pamela. In fact, he even avenged her murder. However, it is not uncommon for summoned minions to seek revenge for the death of their masters. This raises the question, what of the real Jason Voorhees' soul? Has he been damned by his mother's actions and forced to co-reside with this demonic entity in his decaying corpse? Perhaps he does, and perhaps he enjoys it.
