Who did it?

I believe there is Detective hidden somewhere inside everyone. We all love to solve mysteries, crimes by examining clues to uncover identity of the criminal. I bet everyone played detective games in childhood. Am I right? Here are some cases to solve for all detectives here, do enjoy reading and post your comments. I hope you all like it.

The room is small and square with a door and no windows and smells like old socks and rotten eggs, giving me a feel of vomit. In the middle of the room there are two uncomfortable plastic chairs and a table. A camera in the corner of the room and the walls are cream and the corners are curling inwards where the wallpaper is began to peel. Ideal addition to the room is one-way mirror, allows the detectives to watch inside the room. With the sense of isolation, unfamiliarity and discomfort my brain began to scream "get me out of here".

Characters, places, events are fictitious and no intention of hurting anyone.