AK misses in 3bet pot

[AceofSpades]

Hero's been three betting a lot, but is this nasty/good?

Full Tilt Poker - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker Hand History Converter)

Hero (SB): $108.55
BB: $101.75
UTG: $21.90
MP: $149.80
CO: $99.70
BTN: $73.35

Preflop: Hero is dealt K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (6 Players)
2 folds, <font color="red">CO raises to $3.50</font>, BTN folds, <font color="red">Hero raises to $11.50</font>, BB folds, CO calls $8.00

Flop: ($24) 4[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $14.00</font>, <font color="red">Hero raises all-in to $97.05[/color

[jk3a]

hard to say without reads

[Casper05]

uhhh can hero fold?? I ask because normally nobody folds any piece (which is why this line is ok with AA)