Yeah. I don't buy it for a second. IF he had video from perhaps behind himself taking the shot, that would be more believable.
More than likely I believe that he had a camera set in an area where deer were browsing (possibly on something that HE put there, like corn).
He took a deer there, and the camera was rolling when it happened.
THEN, he went back and at a different time, or perhaps even later that day, and filmed the walking up with the ghillie, etc.
There is just no way that he would have the camera angles so perfect, and set up, etc...
If you note the comments on the you tube video; he answers almost every question given to him. However, he avoid answering the user that asks him HOW he got the cameras set up.