He was probably going all-in regardless, but I'm afraid the check-raise on the flop may have scared him off... Probably not, but it put him in a tough position on the turn in any case.

PokerStars Game #1654772105: Tournament #7705497, Hold'em No Limit - Level VIII (200/400) - 2005/05/07 - 17:44:48 (ET)
Table '7705497 1' Seat #8 is the button
Seat 3: nkperson (3625 in chips)
Seat 6: RoosterRod (10005 in chips)
Seat 7: pokaland (4110 in chips)
Seat 8: wedwabbits (1135 in chips)
Seat 9: TwoQue (8125 in chips)
nkperson: posts the ante 25
RoosterRod: posts the ante 25
pokaland: posts the ante 25
wedwabbits: posts the ante 25
TwoQue: posts the ante 25
TwoQue: posts small blind 200
nkperson: posts big blind 400
*** HOLE CARDS ***
Dealt to nkperson [4d Th]
RoosterRod: calls 400
pokaland: folds
wedwabbits: folds
TwoQue: folds
nkperson: checks
*** FLOP *** [Qh 4s 4c]
nkperson: checks
RoosterRod: bets 1200
nkperson: calls 1200
*** TURN *** [Qh 4s 4c] [Ah]
nkperson: bets 400
RoosterRod: raises 800 to 1200
nkperson: raises 800 to 2000 and is all-in
RoosterRod: calls 800
*** RIVER *** [Qh 4s 4c Ah] [Js]
*** SHOW DOWN ***
nkperson: shows [4d Th] (three of a kind, Fours)
RoosterRod: shows [Qs Kd] (two pair, Queens and Fours)
nkperson collected 7525 from pot
*** SUMMARY ***
Total pot 7525 | Rake 0
Board [Qh 4s 4c Ah Js]
Seat 3: nkperson (big blind) showed [4d Th] and won (7525) with three of a kind, Fours
Seat 6: RoosterRod showed [Qs Kd] and lost with two pair, Queens and Fours
Seat 7: pokaland folded before Flop (didn't bet)
Seat 8: wedwabbits (button) folded before Flop (didn't bet)
Seat 9: TwoQue (small blind) folded before Flop