Please post some pictures. By either FRAPS or printscreen or something. Seriously. That is the only way you are EVER, and I mean, EVER prove or disprove ANYTHING. But if this is true I would like to see it.
I still don't know whether Herobrine is real or not. I guess I'm kind of paranoid. You can say that you don't believe this story, but you have to respect his opinion. He may or may not be telling the truth, and it's not your place to tell him whether he is or not. Just leave him alone. Those who have seen herobrine, if he is, know that he is twisted in a way, but shares a deep compassion, much like a Kazedon (creeper).
You guys are the trolls, after the first person to accuse him of trolling, he said he would stop with the topic, and then you guys continued calling him a troll, therefore, you are trolls, and hypocrites.