Tilt 1k river overbet bluff

[djk123]

villain is eastsideslim. the name sounds familiar but not really sure. i figure that he rarely ever would check two pair or better on river. thoughts? would you like a 2/3 to pot bet better?

Full Tilt Poker
No Limit Holdem Tournament
Blinds: t120/t240
(Ante: t25)
9 players
Converter

Stack sizes:
UTG: t3100
UTG+1: t4830
MP1: t3415
MP2: t3542
MP3: t9912
CO: t10137
Button: t5526
SB: t14994
djk123: t3537

Pre-flop: (9 players) djk123 is BB with 5[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/heart.gif[/img]
7 folds, SB calls t120 <font color="aaaaaa">(pot was t585)</font>, djk123 checks.

Flop: 3[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/spade.gif[/img] (t705, 2 players)
SB checks, djk123 checks.

Turn: 4[img]/images/graemlins/spade.gif[/img] (t705, 2 players)
<font color="#cc0000">SB bets t500</font>, djk123 calls t500 <font color="aaaaaa">(pot was t1205)</font>.

River: T[img]/images/graemlins/spade.gif[/img] (t1705, 2 players)
SB checks, <font color="#cc0000">djk123 is all-in t2772</font>,