Here is the full screen shot of Cam 4 closeup of the strange light anomaly as it slowly glides down the hall. While it seems to take the shape of a bat, I can tell you it is NOT a real bat. The length of the hallway shown here is almost 80 feet long. Not once does this shape flap any (wings) or fall from its straight line of a flight path.
Found on YouTube as submitted by Las Vegas Paranormal Investigations of Mysterious Phenomenon Squad - "lvpimps". Be sure to subscribe to their YouTube channel!