There should be an image of 096 somewhere on the facility, somewhere accesible since 096 had no problems wandering to the generator room.
I just realized this, on the containment protocols, 096 cell is an airtight steel cube, with no door or anything. So there is only two options, the chaos insurgency did it (unlikely, since they would want to secure it for themselves and 096 is to dangerous for them to left it to wander(also the insurgency only freed 106 and 079, ingame) or, the most likely one, someone looked at a picture of it causing 096 to break containment.
Since 096 is still free and in the facility, is only logical to think that somewhere is an lost picture of him.
Re: Dev Topic #4
#181God is perfect -> Nobody is perfect -> I'm nobody --> I'm perfect --> I'm God.