he s calling K2s pre but folding JJ on this river because he s a weird fish. K2s can make a flush! JJ loses to QQ! (ya seems stupid but believe me a guy who bet-folds Kx on AK4 flop after min-bet donking thinks this way).

i m def not disagreeing that this hand looks grotesque. but i def don t think this guy is capable of snapping 99 or even AT on this river. not sure if OP posted this yet but the match had been going on for about 90 minutes and we hadn t been caught in a bluff yet.