JJJA6 on the flop.....did I play it wrong?!?!?

[cmillard]

Did I do the wrong thing.........?
3 people left in the tournament I am second in chips, I am holding AJ off suit. There are only small raises before the flop and I just call (3rd place is very low on chips, and I am just wanting him out). The flop comes JJ6, 3rd in chips goes all in and so does the chip leader........I have JJJA6 and call the all in that risks all of my chips......Chip leader flips over J6 and takes both of us out at the same time!
Was there a mistake on my part or just bad luck?