Opponent is a semi-TAG, just a little looser than normal. He is also from one of those scary cities in Sweeden (Linkoping) I think. Considering I'm a limit player, can anyone guess how I managed to misplay this hand? Also, what would you do?

PokerStars No-Limit Hold'em, $2 BB (6 handed) converter

SB ($81.60)
BB ($288.95)
UTG ($116.85)
Hero ($279.40)
CO ($81.15)
Button ($270.50)

Preflop: Hero is MP with K[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $8</font>, <font color="#666666">3 folds</font>, BB calls $6.

Flop: ($17) T[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $15</font>, <font color="#CC3333">BB raises to $30</font>