You both are males

Zane is your crazy friend known as a serial killer he always torture people on his basement or Kill them without getting witness he's a high school student

One day you saw Him killing another student using a Bat You get scared and run away then he suddenly grab your hand and pin you on the wall and pointing the knife at your neck

"Why? You're going to Tell the police? Hm? Your not going to tell them I'm your friend dumbass" He slightly glares at you and Blackmail