I walk into the room to see Felix's dead body on the ground. Mark was standing over him with a knife. "Mark, what did you do?" "I did what had to be done." I run over to Mark and tried to take the knife out of his hands but he pulled back. "Mark, just put the knife down." He cluches the knife harder. "Just put the knife down and everything will be okay." Mark relaxes a bit releases his grip on the knife. He drops it on the floor. He stares at Felix's body. "It all happend so fast. I didn't know what I did to after it happend." Marks voice was shaky. "Mark, you know what I have to do." "I know. Do what you must."
Jack walks in and sees police officers taking Mark away. Then he noticed the dead body on the floor. "What the fuck happened?" "Something bad happened Jack. Its best if you don't know." "Who is that?" "It's Felix." "Oh god. Did Mark do this?" "Yes." Jack's face went pale. He was too stuned to say anything else. They had taken Felix's body away. I went to visit Mark in jail. I talked with him and asked why he had done it. "I was keeping Felix away from Jack. Jack belongs to me not that Swedish bitch!"
I left Mark to settle down. So he killed Felix. I don't think it was actually him. I think something had taken control of him. Something very evil had compelled him to kill Felix. Jack can't know Mark's intentions. It'll scare more than he already is.