How much do you know about Jeff the Killer? Let's see how much you know about Creepypasta's Jeff The Killer! YAAAY! Homestucker published on January 11, 2013146 responses 68 4.6★ / 5 Questions in vertical order Question One. What is Jeff's Brother's Name? Jack Liu Mark Matthew Next Question, Who is Jeff The Killer's Two Companions? Slendy and Smile Dog Smile Dog and Liu Dead Pikachu and Eyeless Jack Liu and Ben What is Jeff The Killer's weapon? A handgun. A Kitchen Knife. A Hanging Rope. A Chainsaw. Who made Jeff go Insane? A girl named Jane. A dog that followed him everywhere. A boy named Randy. A boy named Stan. Why did Jeff go to the hospital? He tried to commit suicide. He got in a fight. He got caught in a fire. He jumped off of his roof.