Haha, okay. Where to begin?
Okay, so if you think that that's either a re-skinned model of Niko or Johnny, then would you care to explain how either, Niko is riding a Bati 800, Johnny is wearing a helmet & where the brand new Uzi has come from? You really think R* are going go through all the trouble of fabricating a screenshot when they could, oh I don't know, just take a screenshot of BOGT? The person on the bike has a completely different stature to both Niko and Johnny. He isn't as built as Niko and isn't as hunched over as Johnny is. As for the hands, how moronic are you? It's clearly just the reflection off the lights. He's riding through Star Junction. Star... Junction!
You're just kicking up a fuss to get some attention. There are always a few of your type lurking about during the few months before release, discrediting every piece of information they see. It's just sad. Get a life, bro