I think you should bet the turn here and make him pay for his 3 outer KJ or backdoor flush draw. Also, if you get checkraised you can fold without feeling too bad about it.

I also like reraising preflop with AK sometimes to get it heads up and avoid a nightmare 4-way flop like you got. As played, though, I think you were behind 95% of the time on the river and had to fold.