Bicycle detail

I inadvertently left our van unlocked overnight and someone rummaged through it overnight and stole my mountain bike out of the back. I've attached a few grainy pics from my neighbour's security camera of the guy stealing the bike, if you happen to see him. I'm pretty sure it's being ridden (not sold), because he left the bike he was on and took off with mine (i.e.: upgraded his ride!). The culprit is tall and thin, and wearing what appears to be dark sweatpants and a light short sleeve shirt. He appears to be a junkie because in the security cam footage he's kind of stumbling as he wanders around our van.