1/2 NL Uncapped buy in.

Hero: mid 20's Caucasian, wearing suit, along with the visual cues employing a play style that portrays a tight aggressive image. Playing few hands with Large pre-flop raises, and continuing aggression on later streets. Evey hand that hero has shown down included two face cards. Hero has won a few and lost a few small-to medium sized pots. stack size has not deviated more than 50BB from the original 300BB buy in an hour prior. The game is taking place around 1am. The game is deep-stacked and is very loose and volatile. Raises less than 7x the BB do little to clear the field.

Villain: late 30's northern European Male, has been sitting at the game for roughly 45 minutes. Villain is loose and hyper aggressive, although appears to be a solid player. Villain has won some big pots but has not shown down any hands. He snapped off a river bluff, but the other played mucked face down so villain did not show.

Hand in question. $600/300BB effective

Two limps from middle position, Hero opens JT for $15 (standard in this game) from the button. Villain re-raises to $50 from the big blind. Folded to hero who makes the call. Villain had been 3 betting from the blinds relatively frequently.

~$100 Flop: AJ6 Checked through

~$100 Turn: AJ6A Villain bets $75, Hero calls

~$250 River AJ6A8 Villain over bet jams $425...Hero?

I would let this go without a solid live read. You could easily have AX in your range letting villain barrel off on a dry flop and villain is still willing to shove. Villain can be bluffing a lot but you have to be right around 2/3 of the time just to break even.

Man, pretty good play by V, but the one thing that seems fishy about it is he checked the flop. Im thinking unlikely he has an A, a hyper aggressive player would bet top pair, but good chance he has a set (JJ/66), because hyper aggressive players also all of a sudden slow down when they have a monster, so I think this is probably a sad fold.

I think well played by you, I am probably checking back flop as well, figuring he will fire on the turn with anything. I would say that I am calling river for a PSB, but not the overbet, but its marginal. Not really a math answer to this I think, cuz its just a matter of % chance he is bluffing.

Well played, OP. Now fold.

Since the board is rainbow, V could be checking lots of value hands OTF. If there was a FD OTF, I would seriously consider hero calling this guy.

If he seems like a solid player then fold -mainly for the reasons QuadJ gave. Villain has to worry that hero has Ax but he's still doing this.