[FoldEqu1ty]

I agree with ActionJeff et al - the way this thread was phrased/conducted is really condescending and annoying. This hand is just a range exercise like any other, and it is very simple and clear cut imo:

All the turn stuff is irrelavent imo. It's just "He thinks that I thinks that he thinks that I thinks......" and could mean anything. Based on your preflop read, there is "a pretty decent chance BB has a huge hand here". I would say that his range leans heavily towards big pairs here - a straightforward, tight player, is imo highly unlikely to consider AK a monster at this stage of the tournament, and would not have been so sheepish about it preflop - in his mind it is a drawing hand. QQ and JJ fold that turn, leaving his range heavily weighted towards TT, KK and AA here. Even if we add AK to his range, because of positional disadvantage a call here is still -EV.