No reads on the opp, but something about this said either "busted draw" or "made 2 pair" and the river bet was my stack... thoughts?

PokerStars No-Limit Hold'em, $2 BB (5 handed) FTR converter on zerodivide.cx

Hero ($193.05)
MP ($253.45)
Button ($92)
SB ($55.25)
BB ($247.20)

Preflop: Hero is UTG with A, A.
Hero raises to $8, 3 folds, BB calls $6.

Flop: ($17) 6, 4, 7 (2 players)
BB checks, Hero bets $12, BB raises to $24, Hero calls $12.

Turn: ($65) 9 (2 players)
BB bets $26, Hero calls $26.

River: ($117) J (2 players)
BB bets $189.2 (All-In), Hero ???