Pokerstars 1/2, Laydown KK preflop?

[Utah]

I had been playing very agressively and had been raising a lot preflop on a terribly tight table. The previous hand I had been dealt AA UTG, where I limped and then came over the top to a raise. Everyone folded and I showed my cards.

Next hand in the BB I am dealt KK. Folded to button who limps, sm completes, and I raise it up $10. Button folds and sb check-raises me for his last $80.

wtf? What to put him on?
I figure he has AA, since this was his first raise in a long time and since he bet all his chips. I really dont put him on a bluff because the bet didnt need to be that big to pick me off.

I also figured that he might be going all-in with AA, because he figures that I cant put him on AA since AA just came up the previous hand (yes, I know that the previous hand has nothing to do with it, but perception is important).

Therefore, the only real hands he has are AA-JJ and A,K.

Since he went all-in, he might not want a call but has a fight chance if I do call.

When I folded, he flipped over A,10o.

Was this an easy call?