NL50 KK vs turn minraise

[Rednas]

Party Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 5 Players - (LegoPoker HH Converter (http://www.legopoker.com/hh))

SB: $47.49
BB: $87.41
Hero (UTG): $70.09
CO: $89.71
BTN: $49.00

Reads: <font color="blue">Villain is 67/12/1.3 (turn AF = 2.25) over 55 hands.
I saw him donk 1/2 pot into two guys a few hands before (both folded).
He seems to call to much but will bet when he has the initiative.</font>

Preflop: Hero is dealt Khttp://legopoker.com/hh/images/club.gif K/images/graemlins/spade.gif (5 Players)
<font color="red">Hero raises to $2.00</font>, CO calls $2.00, BTN folds, SB calls $1.75, BB folds

Flop: ($6.50) 6http://legopoker.com/hh/images/diamond.gif Jhttp://legopoker.com/hh/images/diamond.gif 7/images/graemlins/heart.gif (3 Players)
SB checks, <font color="red">Hero bets $5.00</font>, CO calls $5.00, SB calls $5.00

Turn: ($21.50) 4/images/graemlins/spade.gif (3 Players)
SB checks, <font color="red">Hero bets $15.00</font>, <font color="red">CO raises to $30.00</font>, SB folds, Hero

Is this a set 100% of the times or just a horribly played AJ?
All in/ call (+ riverplay)/ fold?

[Rednas]

anyone?

[BackdoorQuads]

I'm probably shoving my chips in the middle here, but that might not be too good.

[members_only]

I'd consider checking this turn after getting two cold-callers.

As played I think this either a fold or a call and c/f the river.