In early tourney play, several players will call raises with speculative hands for implied odds
. The range for this call is generally small to medium pocket pairs (larger pairs will generally re-raise), suited connectors, and medium/small A's.
I think your raise on the flop is too big - if he's flopped AA like you or QQ, he'll call or fold to 360 (even less, probably) just as often as he will to 500.
Once he shoves, though, this is a fairly easy fold for me - you had a multi-way flop and it's easy to believe it hit somebody hard - he's usually not shoving the flush draw, you're representing a willingness to build a big pot with big slick or better, so, when he shoves, he's generally got at least 2 pair (though AsXs is also a good possibility - top pair nut flush draw). You're ahead of any A with an unpaired kicker other than another big slick, but you're behind on everything else.