I didn't want to watch, but enough people expressed doubt that I did. It looks fake to me too.
2012 and you're shooting what looks to be bad cell phone footage? You never see the actual start of the stabbing, it's a cut away shot from the guy moving on the bed to a body with holes in it already and continued stabbing. This guy is a killer and he's not going to film the actual moment of death? Also the argument that the body was drained of blood before the butchering doesn't make sense, why isn't he showing that part? Also why is the blood staining and spattering all neat? If say, he dragged the to the bathroom to drain or he dragged it to the edge to drain, it should be messier.
Also watch the sweeping cuts about five minutes in, those are too clean to my eye, he should be getting down into the muscle, and even with a drained body you should see some bleeding or evidence of blood. Also some of the cuts aren't opening like you see on flesh, it's almost like he's cutting foam or silicone.
Too many things wrong and too many cut away shots, I'd be shocked if it was real.