I have AA and he cr shoves the turn

[Irish Mafia]

Villain is DrewzerMT or something. He plays TAG 20/16 or so. We don't have much history (that I can remember). What do you make of his cr shove on the turn? Note that he over-limped and then called my raise. fwif I recall that villain took a while to call flop. I can't recall how long he took b4 shoving, but I think he tanked for a few seconds.

Full Tilt Poker - No Limit Hold'em Cash Game - $5/$10 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $740.80
BB: $500.00
UTG: $1,038.00
MP: $1,290.75
CO: $1,010.00
Hero (BTN): $1,380.50

Preflop: Hero is dealt A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (6 Players)
UTG calls $10.00, MP calls $10.00, CO folds, <font color="red">Hero raises to $55.00</font>, 3 folds, MP calls $45.00

Flop: ($135) 5[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (2 Players)
MP checks, <font color="red">Hero bets $100.00</font>, MP calls $100.00

Turn: ($335) 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
MP checks, <font color="red">Hero bets $240.00</font>, <font color="red">MP raises all-in to $1,135.75</font>, [i]Hero ??