[elindauer]

BB should have lost at least one more BB. If he calls the turn and UTG 3-bets, now I can imagine a good hand reader finding a fold. On the other hand, UTG could have AK, so a 3-bet from the BB would be totally reasonable.

Button played it reasonably, I'd say. 3-betting and folding preflop are all reasonable. Waiting for the turn to raise his TPTK let him see how UTG reacted to a turn bet, and also see whether an ugly K or J hit the turn.

All told, I'd say that the guy seems to have played the best, the BB, actually played the worst and made a mistake on the turn. UTG played perfectly, with the button coming in 2nd having played his hand reasonably but missing chances to get away preflop and when UTG made the power limp-reraise on the turn.

my 2 cents.
Eric