Call this river push?

[Double Eagle]

From Stars 20NL. Villain is new to the table and I have not seen him show down a hand....

PokerStars No-Limit Hold'em Tourney, Big Blind is t50 (9 handed) converter

MP3 (t1545)
CO (t2910)
Button (t1170)
Hero (t2535)
BB (t3880)
UTG (t990)
UTG+1 (t1180)
MP1 (t1155)
MP2 (t1530)

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">6 folds</font>, Button calls t50, <font color="#CC3333">Hero raises to t250</font>, BB calls t200, Button folds.

Flop: (t550) 2[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t350</font>, BB calls t350.

Turn: (t1250) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, BB checks.

River: (t1250) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">BB bets t2800</font>, Hero ????

[West]

Hero folds unless maybe he has a real good read on villain being a clown/maniac...