This video was taken by The Ghost Investigators Society and if you listened to Art Bell, you would've heard their collection of amazing evps. The video is a bit blurry but that is due to the video quality available at that current time.
This video was taken when they were investigating a school and there were 2 investigators who were filming but both never saw the figure walking past them.
In my opinion, they've always come across as reputable people and not prone to making incidents up.
Very eerie video!