NOPE!!! It says on the minecraft wiki if you go to Herobrine that when they put the 'Removed Herobrine' It was just a prank by Mojang, and I relay don't think that the first 'Herobrine Sighting' Is real. It could have been multi player, or the person lied(people do that you know) soooooooooo. No I don't believe in Herobrine. But some of the people I play with DO... so I like pranking them... I'm real bad at it tho... they always know its me.... T . T But yeah thats my opinion! Here is the link to the MC Wiki!