Well, I think he has A♥:A♣: because almost all tight players will mini 5 bet with only this hand. He thaught that if he mini 5bets, maybe the other player would call some part of his range, like QQ-KK because BTN wants to let some bluffs in the villain´s range.
Also, he could push some other hands, because he thinks BB could be using his tight image to bluffing in this situation.
So thats my opinion! 
AhAc. I think if it is really tight player it is most likely combination to play this way at pre flop. Depends on how tight he is it is possible to play the same with AK, or KK, but I think its AA.
Hero makes a relatively small size. Considering he is full stack and considering that we are at high stakes both players can be considered as advanced regulars. The size 2x could be standard for a player at that level so that Oppo would give to hero quite a large range (BTN range), it's 3 bet size is standard, he wants hero to pay adequate to compensate the disadvantage of being SB. Hero makes a little 4-bet, showing either not particular strength (es AQ) and the need to gather information or AA/KK. With AK hero's play seems incorrect. Considering that, Oppo, that I consider for the above mentioned reasons an expert player, makes a small size that is enough to make bluff hands fold but also allow a possible push from Hero with a quite large range considering that the mini-raise can represent a raise to fold in case of push, a way to obtain information and to easily push on the flop in case Hero calls.
Seeing hero's push Oppo should give him a rage that is approximately AA, KK, QQ, AKs/o, meaning that he would call with KK+. Considering the few chances of the combination AA since heros has it I think Oppo has KK. Moreover AA seems less probable considering the size of Oppo 5-bet, it would have been probably higher in case of AA.
I'll give her range as: AKs and QQ +, risk preflop 100BB is not worth the stakes bet with worse in my opinion.
But still, I vote: A♥:Q♥:
Acho que é a jogada clássica AA X KK , quando a BB faz raise para 124, tem um range forte e escolho este cenário KK contra AA .
One example: BU OPR 62%
BB fefends 58%, #592 call / 9%,#116 3bet/fold and #58 3bet/5bet QQ-TT,AdAh,AhAs,AdAc,AhAc,AsAc,KdKh,KdKs,KsKc,AQs+
BU calls #148 - 4bet/folds #48 ATo,KJo-KTo,QJo and 4bet/calls #32 QQ-JJ,AsAc,KdKh,KdKs,KdKc,AKs,AKo
BBs hand: AKo+AQo > TT-QQ > AA > AKs+AQs > KK
Tip: AKo (AhKc)
I think he got KK, he is probably thinking that its a small chance that someone has AA when he got KK... so thats why he is re-raising.
A♣:A♥:, here is no bluff from tight player, he has AA and he want BU to call.
There is no JJ, QQ, KK, AKs, AQs, AJs, these hand tight player would have folded from this position
BB has KK or AK.... The first bet was to increase the value of the pot .... The second bet was to fend off any draw and try to win the pot at that time (safely, because he would have a good hand if the hero paid)....
KK
La primer subida de la bb la puede haber hecho con cualquier mano decente. Ya cuando button vuelve a raisear, es muy probable que tenga una mano fuerte AA/KK/QQ. Ahora para que el bb vuelva a subir y pagar el allin, solo queda que tenga una mano como AA o KK y como en este caso ya sabemos q el button tiene AA, es mas probable q bb lleve KK y no AA.
Since he is known as a tight player, he will not bluff in this spot, he has a real monster. So either AA or KK.
