London Bridge Terror Attack ANOMALY June 2017

This video surfaced the day after the apparent terrorist attack on the London Bridge (not Tower Bridge, London Bridge). I crossed that bridge & had a drink at a bar in The Shard five days before this incident. I commented that the bridge was ripe for a vehicular attack the day I was there, with low curbs & wide pavements crowded with tourists. Less than a week later, the news of the attack broke, but this video flagged the incident as a possible hoax, false flag. Another one.
Obviously, this is just ONE anomaly & there could be some reasonably reasonable explanation, not that AN has ever heard one. But the video appears to show a British policeman changing clothes in the street along with a whole bunch of others doing the same. The thing is... this guy is changing into clothing very, very similar to those shown on the deceased terrorist a short time later. The copper is slipping into a pair of camo pants, which are clearly visible later on the deceased terrorist. The terrorist, like our erstwhile copper, has a dark, 5 O'Clock shadow & the same blue t'shirt.