"[shows Pam Roberts a picture of Joey Burns] We found this on Roy. The kid who was axed to death at the woodpile was Roy's son. God only knows why Roy kept it hidden all these years, but he did. Roy was a real loner. Never talked much... not even to the other paramedics. I guess when he was called to the scene and he saw that it was his own Joey all hacked to pieces... We also found these. [shows Pam some newspaper article clips on Jason Voorhees] I guess he used the Jason thing to... cover up the..."
January 1, 1970
https://en.wikiquote.org/wiki/Friday_the_13th%3A_A_New_Beginning