Alright, well you already know that turn bet sucks. It tells you nothing about villains hand. With that display of weakness, if he's aggressive he's equally likely to have picked up something like a heart draw as he is to have a straight, since he may think he can push you off the hand.

As you played it though, I dont like to three bet there. The river isnt a bad card. nothing changes since if he had JT he had the nut straight already anyhow. I dont like leading out though. You're probably not going to get called by much of a worse hand unless you bet a decent amount less than the pot, but this could open you up to getting blown off the hand since at this point you really dont look strong at all.

I think a check, call reasonable bet is a better line on the river. You may induce a bluff if he was indeed on a draw. Even if he wasnt, if he bets and it costs you 50 bucks, at least this time you get to see the showdown.