sunghoon's is your roommate he's a serial killer but you didn't know that and everyone don't know yet

One night you're in the living room watching movie while eating you're watching a news the news is there's someone found killed in the bridge and the killer isn't found yet and you didn't it's sunghoon and everyone didn't know it ,suddenly sunghoon come in the dorm and take off his jacket and shoes he look at you he's so innocent like he didn't do anything and he smiles at you