Unbeknownst to her, young Michael was watching their every move, and as soon as her beau left the room, he entered with a kitchen knife and stabbed her to death.
In 1963, 15 years before Halloween’s events, we see a young Michael Myers make his first kill.
On Halloween night, Michael’s sister, Judith, was preoccupied with having a night of fun and sex with her boyfriend.
Just as he finished his evil deed and left the house, his parents came back from a night out, discovering their son in a costume, wearing a mask and holding a bloody knife in his hands.