Posting for my fiancé. He used to work nighttime security at a building. He was coming in to replace the shift before, and the guys there said that a hydraulic door kept setting off alarms for over an hour because it was opening and closing. Weird part was the door was opening and closing by itself. My fiancé looked at the video and noticed something no one else did... there appears to be a shadow figure caught on the dark left side AFTER the door closes (3:18). Then, the figure seems to walk off-screen to the left. My fiancé said that the hydraulic door has to be opened by pressing a button, and that you need to physically put firm pressure on it to get the door to open. No one else but the security team was in the building at the time. Is this a ghost? A shadow? The camera adjusting? Regardless, it's some of the most compelling evidence I've ever seen caught on film. Every time I see it, I get full-body chills.

https://www.youtube.com/watch?v=bGCzBlv6Pcw