Only question is the river. You know you are ahead on the turn so keep jamming. On the river you hit the worst card that can fall in the deck. Given that you had to put him on pocket rockets or a flush draw (though the only FD a tag that caps from MP would have is AcKc and the Kc is on the board) OTOH a tag would not cap the turn either with kings on the board. Any how he is going to have Aces or a FD a huge % of the time here and you are toast. The pot is big enouugh I see nothing wrong with a check call at the end.