From what you have described, it sounds like The dealer killed the hand of QQ, as the player failed to protect his hand, the stub has been dropped and washed. I'd give the pot to the player with AA solely because he has the last live hand, I'm thinking if I should award the player with AA the full 10,500 or 1,500 from the middle player, given that I am standing behind the player and heard him say call. I certainly would not be re-creating the hand and running it, as the player with AA didn't table his full hand and has done nothing incorrect in this circumstance.
Now to what to give the player to wins the pot? 10,500 from the other player or 1,500, I am leaning towards 10,500 as A) He announced call, which I heard and B) He failed to protect his hand, and the bet he announced "call" to was the all-in from the other player, but does the best interests suggest I should just ship the 1,500 to the other player? It's a bit grey but I think I have to say 10,500 goes to the hero.
My reason, once again is TDA rule 49:
49. Accidentally Killed / Fouled Hands. Players must protect their own hands at all times. If a dealer kills a hand by mistake, or a hand is fouled, the player will have no redress and is not entitled to a refund of bets. If the player initiated a bet or raise and hasn’t been called, the uncalled bet or raise will be returned to the player.
Regards
Stuart