QQ made me go home

[snowmen]

I was in the bubble of a very loose mtt.40 players left , 27 itm , i was in the sb with QQ , a ultra-loose shortstack went all-in(A2o) , the table chip leader(ATo) , another loose and lucky player called , and with those reads i did not doubt what to do , i went all-in 10k chips (400-800).Table leader called and hole cards was showed so i think i was ahead enough to win the huge pot and reach the final table but an ace (2 outs!!) in the river ended my tourney.Any thought about the hand?