I guess I'm a little late to the thread but like others have said it's not hard to believe the event just the validity of the pic. Last winter I was drawn for an Elk hunt in the Wichita Mts in Oklahoma. A fellow that I helped to pack his elk out had left part of it in the moutains overnight. The next morning the 3 quarters and remaining carcass were moved further down hill (thankfully) and covered with grass. Definate signs of a large cat.
Very informative video, BTW. Around my area they tend to be darker in color and when I've seen them it's always when I'm driving and in about two bounds they are across the road and gone! Only has happened twice.