Evidence the London terror attack a sham

Here's a video from BP Earthwatch showing a dead terror suspect moments before changing out of police uniform with the other police changing also.

Here's an article from NBC showing the original photo that BP Earthwatch references:

http://www.nbcnews.com/storyline/london-bridge-attack/london-bridge-attack-american-hit-head-police-bullet-witness-says-n768186

Now, I will say that I'm not a huge BP Earthwatch fan. I think a lot of his videos are highly questionable, but this seems very undeniable.