"Exactly" isn't possible as his face is not clear enough. However, the proportions and body type/the way his clothes fit, combined with his head/face blurry image, that we now have seen, certainly do look like him. I think that those that were "married" to the idea that BG was KK, TK, RL, BC, and a number of others, wanted it to be them so badly that they ignored the first FBI estimate of BG's height. I remember arguing with other members that KK couldn't be BG due to his large frame/weight and height. I think there are still those that are so invested in KK being involved, that they can't let go of their original theories. To me, this is ignoring that sexually motivated killers almost always have a well-hidden, private (not shared) imagined event that won't go away, even if they have resisted acting on it for years. They act on their own, they watch and wait until the right victim is in the right place at the right time. That is an important part of the build-up. Other times he walked there and looked for an opportunity. That can't be orchestrated by someone else.