6 tables left in the tourney, Villain has been fairly aggressive towards hero but hasn't shown down hands.
I think I completely messed this hand up, you'll see why in a second but I want to know what your opinions are about the hand overall.

I think betting isn't really accomplishing much, I was debating a check or a bet, but I ended up betting because I didn't want to give away a free card, I think his range is full of Pocket Pairs, I don't think he has that many 5's, only 65, 45, maybe A5 (I doubt he has A5, he has 3bet a decent amount which leads me to believe he is 3betting most of his Ax preflop.
In retrospect I think a check is for sure the play here, we don't get a lot of value from this bet, when we check we can induce Villain to take a stab at the pot and we can call him down, so I think I should have checked.

I think calling the check raise is okay, he might be doing this with complete air and might give up on some turns, if he's bluffing we are going to have a tough time taking this hand to showdown but it doesn't seem bad.

I think here is where the big mistake is made. If I call here, I should be ready to call a river jam.
I think V tells us he's comitted to the pot, wether he has value or a bluff I don't see how he checks on any river card.
I think we are at the bottom of our range here. We have JJ-AA, 5x that are better hands to call.
Villain is representing a super narrow range, basically 5x, which I don't think there are many combos.

With these things in mind, I lean towards a fold, or at least if we are calling here we call all rivers.

Not much to say, I think if we call and we are wrong we are done, and if we fold we still have some room to manoeuvre so I decided to fold. I don't think he is bluffing here super often but I think he can for sure make the bluff.