[Tom22]

I witnessed this hand. What makes you think he was making a move on the turn? If so, why not raise it more... and take the hand from him. Was the raise on the turn to set up the bluff on the river? After his river bet, I would think he has a made hand, what made you decide to bluff.
It's a big bluff in a pot that's about the same size. Anyway good bluff on the river, I think everyone at the table was surprised with the move.