Jason Voorhees is a fictional character from the "Friday the 13th series". He first appeared in "Friday the 13th" (1980) as a young boy. When he was a boy, he went to a summer camp "Camp Crystal Lake" where he was made bullied because of his appearance. He had a deformed face and body. They threw him into the lake and he drowned. It was later discovered he survived and became a killer after a teenager killed his mother, Pamela Voorhees.