[wyrd]

I haven't read the results yet, but he hasn't shown strength. I'd continue to bet, maybe 1/3rd the pot hoping to get a crying call from the worst hand. If he had a set or two pair, he would have (or should have) bet on the river, and there's absolutely no reason to put him on KJ. If he check-raises, I gladly push.

EDIT:
Read the results. Pretty passive play from villain. I'd make a note of the player that he was insanely passive, and move on.