This is from my BAP game tonight and was the biggest downswing I had to that point.

Full Tilt Poker, $200/400 Hold'em Tournament, 9 Players
Hand Converter by Pokerhand.org

Board:
carl147 (Button): $15,535
Arazmus (SB): $9,000
ffcowboy76 (BB): $8,139
Wiredaces23 (UTG): $7,888
rayfrog (UTG+1): $7,855
KpKelly (MP1): $8,475
mrhappyturtle (MP2): $11,458
Blast3r (MP3): $7,780
hhpimp (CO): $38,774

Dealt to ffcowboy76 A:spade: K:diamond:

Pre-flop:
(4 folds), Blast3r raises to $800, (3 folds), ffcowboy76 calls $400

Flop: ($2,250) 4:spade: 4:club: T:diamond: (2 Players)
ffcowboy76 checks, Blast3r checks

Turn: ($2,250) 6:club: (2 Players)
ffcowboy76 bets $1,600, Blast3r raises to $3,200, ffcowboy76 calls $1,600

River: ($8,650) 9:spade: (2 Players)
ffcowboy76 checks, Blast3r bets $3,730 and is all-in, (1 folds), Blast3r returns $3,730

Results:
Blast3r wins $8,650

What do you think he had? I couldn't rule out AT or A9 to make the call. We were within 50 of the cash if I remember correctly. Should I have made the call?