Poll -- What is Hero's error in this $33 hand

[Steve]

MP2 was a typical $33 player no signs of being crazy. MP1 is an idiot.

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (8 handed) converter

BB (t910)
UTG (t2030)
Hero (t695)
MP1 (t700)
MP2 (t775)
CO (t952)
Button (t980)
SB (t958)

Preflop: Hero is UTG+1 with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, UTG calls t30, Hero calls t30, MP1 calls t30, <font color="#CC3333">MP2 raises to t125</font>, <font color="#666666">3 folds</font>, UTG folds, Hero calls t95, MP1 calls t95.

Flop: (t450) 8[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, MP1 checks, <font color="#CC3333">MP2 bets t300</font>, Hero is all in, MP1 calls t570, MP2 calls t270.

Turn: (t1590) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
MP1 is all in, MP2 calls t5.

River: (t1595) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>

Final Pot: t1595

Results in white below: <font color="#FFFFFF">
Hero has Jh Jd (one pair, jacks).
MP1 has 4c Ac (one pair, fours).
MP2 has Kd Kh (one pair, kings).
Outcome: MP2 wins t1595. </font>