Who fold this river reraise? Comments on my play.

[Munchkin Mayor]

15/30 game at CP. Decent game. I am utg1, 3 bet the live straddle with 66. two cold callers. sb 4 bets. he is an old Asian guy (john) who plays like an old white guy.

folk is 556 with two diamonds. sb bets, bb calls. I just call. so do the other two.

turn is 2 hearts. sb bets. big blind calls. I raise. fold fold. sb thinks for a while looks at his cards then calls. bb folds.

river is Jd. sb bets. I raise. he reraise. I ?