HEEEEEEEELP!!!!!!! 

I've been watching Heroes like an addict but there is just ONE SIMPLE thing I don't get!

It is so simple that I think I'm kinda dumb for not getting it, but if ANYONE can help me out here it would be GREAT!!!

Can sopmeone tell me why is Mr. Bennet called HRG?!?!?!?!

Thanks in advance!!!!!!!!!!