[Petteri]

Hmm.

Does anyone have KK, QQ, KQ, K9 or K4?

KK and QQ is not likely if BB is LAG. LAGs almost always raise with premium hands. K9 or K4 are distant possibilies because flop got capped, but not completely out of line.

KQ is the hand you should be worried about. Only in that case BB:s game would make sense. But LAGs play pretty unpredictable. BB:s aggression factor is only 1.2, he is not super-aggressive LAG.

I think he has KQ, so I call river.