The guy was reraising before the flop a lot. I haven't played with him before so he might have been getting a sick run of cards. Anyways what do you think

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (5 handed) from (Format: FlopTurnRiver)

SB (t1500)
BB (t3190)
Hero (t3805)
MP (t2040)
Button (t2965)

Preflop: Hero is UTG with A, A.
Hero raises to t300, MP raises to t700, 3 folds, Hero raises to t1300, MP calls t600.

Flop: (t2750) 5, 8, J (2 players)
Hero bets t2505 (All-In), MP calls t740 (All-In).

Turn: (t5995) 7 (2 players, 2 all-in)

River: (t5995) 3 (2 players, 2 all-in)

Final Pot: t5995

Results in white below:
Hero has Ac As (one pair, aces).
MP has Js Jd (three of a kind, jacks).
Outcome: MP wins t4230. Hero wins t1765.