I've already started it, but thanks for the tip
You are welcome. I actually ran your hand in ICMizer but initially decided to not share the result, because its kind of complicated. But given that there are still people, who suggest to fold here, I will do it anyway. For an explanation of, what ICMizer is, see the sections about ICM in the CC 30 day course. Unfortunately ICMizer cant analyse the situation completely correctly. This is because, BB is pot committed, and the program can only handle two all-in players, and in this situation there was essentially 3, since BB will never fold.
So the results are somewhat inaccurate, but AQs is a massively profitable call winning you at least 8.000 chips and realistically probably more. The fact, BB was pot committed, mean, the first player should be jamming a tighter range, because there is essentially no fold equity. And the later players should adjust to that by also jamming a tighter range. But its NOT about the fact, there are two all-ins. This does not matter, because due to the top heavy structure of this tournament, where only 3 places pay out of 1.000+ entries, there is no value in outlasting other players, until you get to the final table.
So at the tightest your calling range here is something like 77+, AQ+, AJs, KQs. This is under the assumption, that both players ahead are jamming very tight, because they adjust to the pot committed BB. However this is a freeroll, so I think, its highly unlikely, they understand it, and therefore I think, the ranges are closer to, what they would be, if BB was not pot committed. And in that situation you are supposed to call with something like 25% of hands.
An interesting point is, that a hand like 76s is preferred as calling hands over A7o. This is because, A7o will often be dominated by a better AX hand, whereas 76s usually have two free cards as well as the straight and flush potential, which is very important multiway. So if BB had for instance a 5BB stack, and you looked down at 76s, then this is a spot, where you should call, because you are getting fantastic pot
odds, and you have enough equity in a 3-way pot, where BB will usually fold and leave his dead chips in the pot.
I am mentioning this, because a lot of the answers, you have gotten, are totally off the mark. Which show that a lot of players have very poor understanding of these short stacked situations, where ICM is not important. Rather than being a nit and fold, until you are blinded out, you need to be willing to get it in with any sort of decent hand.
And AQs is way more than just decent. It actually dominate a lot of the other players ranges, so the situation is just the opposite of, what it is with a hand like A7o. But of course some percentage of the time you will run into AK or QQ+ and be in bad shape. But this is baked into the math and no different from running KK into AA with deeper stacks. So yes this was just a cooler, and please dont let anyone talk you into folding in similar future spots, because that would be a major blunder