Speculation.

Spoilers for season 2, particularly Reichenbach.

I read this "Richard Brook" post a while ago, probably in December 2012.  It bothered me.  I wanted to argue with it A LOT.

Short answer:  I think this is the crackpot theory.  Like Bruno Bettelheim on fairy tales, some reads well, and then the rest just goes ka-blooey.

But if you're looking for some lovely screen caps of RF -- with a couple thrown in from other eps -- that's a jackpot.