[Maxxum]

My thoughts:
I put UTG on pocket 9's or possibly 8's.

He raises just a bit preflop, then calls your reraise.

He probably put you on AK or AQ... especially when you checked that turn. I think you were way ahead the whole time and should have been much more aggressive.

He bet the river thinking he was ahead. You also did not include the chipstack sizes which would have been helpful to note.

I rule out JT for him. I think he raises the flop with JT.

If I'm WAY off in my thinking let me know your thoughts.