<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
I have some questions about my favorite slasher series, Friday the 13th. For starters, who's the killer in the first movie?
<|assistant|>
The killer in the first Friday the 13th movie is Jason Vorhees, who was conceived to be the young son of the town sheriff from the previous installment. He drowned at the campsite pool as a child and was believed to be dead, but 10 years later resurfaces in the woods surrounding Camp Crystal Lake to wreak havoc on the camp counselors. 

He wears a mask made of ice to hide his identity and is the antagonist throughout the series. He often incorporates a variety of weaponry into his kill techniques, such as a large knife, machete, ax, and even a pitchfork.