Horrible overcall $1000 Live MTT

[renodoc]

10K starting chips.

Button: aggro asian kid with 20K
SB: old man with 15K
BB old woman with 12K

Blinds at 100-200, Preflop action not that important, but very unlikely that someone is holding AA or KK.

Board on River:

A-A-6-K-K

Pot is 2000 or so.

SB bets 1500
BB calls 1500
Button raises to 4000 (obv holding Ace)
SB calls 4000 (should also obv be holding ace, but calls with naked King)
BB overcalls 4000 holding a naked King

Guess she thought they were both bluffing. Or maybe they both also held kings and they would chop three ways....