My bust hand from Sunday's PokerStars $500K guaranteed

[Bigwig]

There were about 1100 players remaining out of 3079 starting. So the average stack was ~t7000. The blinds were 200/400 25 ante. I had the avg., 7000.

I was in the CO, villain was one seat to my right. Villain had been pretty short (around 3500) before tripling up with quads. He then won two more huge hands to increase his stack to ~30,000, which put him in the top 5. In all cases he had good hands. So he wasn't being a cowboy and getting lucky. But, my thoughts were that his confidence was high, and perhaps my fold equity was low.

Folded to Villain who raises 2.5BB (t1000). I push all in with AQo. What do you think of this play?

Thanks in advance.