AKo on the button, TPTK, turn resistance, auto-fold?

[Dr_Freeze]

I hate these decisions... Villain is LAG preflop (54/20, 100 hands played), but reasonably sane postflop (AF 0.90). Most of my hands played with him were a previous session... can't remember what types of hands he's shown down, etc.

Comments on all streets appreciated, but mostly the turn decision.

Texas Hold'em No Limit (€0.50/€1)

Table "Cyan" Seat 5 is the button.
Seat 1: BB (€44.08 in chips)
Seat 2: Villain(€126.09 in chips)
Seat 3: MP (€33.25 in chips)
Seat 4: MP2 (€28.86 in chips)
Seat 5: Hero (€97.50 in chips)
Seat 6: SB (€98.48 in chips)
SB: posts small blind €0.50
BB: posts big blind €1
----- HOLE CARDS -----
dealt to Dr_Freeze [Kh As]
Villain: calls €1
MP: calls €1
MP2: folds
Hero: raises to €7
SB: folds
BB: folds
Villain: calls €6
MP: calls €6
----- FLOP ----- [7s 8c Ks]
Villain: checks
MP: checks
Hero: bets €15
Villain: calls €15
MP: folds
----- TURN ----- [7s 8c Ks][9c]
Villain: checks
Hero: bets €25
Villain: raises to €104.09 and is all-in
Hero???