8/16 Bellagio Monster Draw

[vmacosta]

My usual game is a bit higher and more aggro so sometimes I have trouble adjusting to typical players in these games. That said, I had no read on vilain in this hand except that he was young and had not played a hand in the orbit or so since I joined the game (I hadn't played one either).

EP limper, Villain raises in MP, SB folds and I call in BB with:
A [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/diamond.gif[/img]
Flop is:
K [img]/images/graemlins/diamond.gif[/img] T [img]/images/graemlins/diamond.gif[/img] 4 [img]/images/graemlins/spade.gif[/img]
I bet, EP folds, villain raises, I 3-bet, villain 4-bets, I call.
Turn is:
2 [img]/images/graemlins/heart.gif[/img]
I check, villain checks.
River is:
6 [img]/images/graemlins/club.gif[/img]
I bet....
What do you think villain's range is here and how is my play on all streets?