An Omaha Affair

How the fuck can this guy put his money in on this flop? I even asked him that but then realized why there was a fish by his name...

PokerStars Game #9026009219: Tournament #45884912, $15+$1 Omaha Hi/Lo Pot Limit - Level V (75/150) - 2007/03/22 - 00:48:38 (ET)
Table '45884912 1' 9-max Seat #7 is the button
Seat 2: holdemhater5 (2760 in chips)
Seat 4: WPTunderdog (4687 in chips)
Seat 5: Stacks4Sale (1945 in chips)
Seat 7: KennyW63 (2113 in chips)
Seat 8: Kevin9797 (1995 in chips)
Kevin9797: posts small blind 75
holdemhater5: posts big blind 150
*** HOLE CARDS ***
Dealt to WPTunderdog [Ah 8d Qs Kh]
WPTunderdog: raises 375 to 525
Stacks4Sale: folds
KennyW63: calls 525
Kevin9797: folds
holdemhater5: folds
*** FLOP *** [6s Kc 9d]
WPTunderdog: bets 1275
KennyW63: raises 313 to 1588 and is all-in
WPTunderdog: calls 313
*** TURN *** [6s Kc 9d] [Ks]
*** RIVER *** [6s Kc 9d Ks] [7s]
*** SHOW DOWN ***
WPTunderdog: shows [Ah 8d Qs Kh] (HI: three of a kind, Kings)
KennyW63: shows [8s 2s As 9c] (HI: a flush, Ace high) (This fucker... I mean sucker stacked all his chips in with mid pair, no apparent draws with only the A-2 runner-runner draw and the back door flush in which of course Lee let him get there...)
KennyW63 collected 4451 from pot
No low hand qualified
*** SUMMARY ***
Total pot 4451 | Rake 0
Board [6s Kc 9d Ks 7s]
Seat 2: holdemhater5 (big blind) folded before Flop
Seat 4: WPTunderdog showed [Ah 8d Qs Kh] and lost with HI: three of a kind, Kings
Seat 5: Stacks4Sale folded before Flop (didn't bet)
Seat 7: KennyW63 (button) showed [8s 2s As 9c] and won (4451) with HI: a flush, Ace high
Seat 8: Kevin9797 (small blind) folded before Flop