because take a look at the 5fps vid lol... come on, it'd take me about 30 seconds to plan and carry that out with a couple of mates, its not impossible but unlikely that the original 'slapper' would have walked away with his back turned when the victim was shouting and coming towards him.. plus lets remember this is a pair of young scally lads from liverpool not rocky and clubber, so a one punch knockout as this vid shows is unlikely (but again not impossible), looks like a few mates decided to have a laugh, nothing more

so until we hear from the source i say... fake