All went as planned, then online poker happened

Crazy guy was to my left so I thought he may raise and get a few more callers in so I could reraise and get some more money in the pot. Well, I got some action all right.....fucking bullshit. The worst hand ends up winning....what the fuck is he doing in the hand behind 3 all-ins for all his chips?

PokerStars Game #3406718800: Tournament #16887317, Hold'em No Limit - Level III (25/50) - 2005/12/22 - 17:59:11 (ET)
Table '16887317 8' Seat #1 is the button
Seat 1: 7Rock7 (2660 in chips)
Seat 2: kissed (1840 in chips)
Seat 3: luckyshades (2410 in chips)
Seat 4: TruckBuilder (2010 in chips)
Seat 5: CASINOADDICT (2110 in chips)
Seat 7: Menace_b (2005 in chips)
Seat 8: Sorinaccio (960 in chips)
Seat 9: F Fairlane (3715 in chips)
kissed: posts small blind 25
luckyshades: posts big blind 50
*** HOLE CARDS ***
Dealt to TruckBuilder [Ac Ad]
TruckBuilder: calls 50
CASINOADDICT: raises 350 to 400
Menace_b: calls 400
Sorinaccio: folds
F Fairlane: folds
7Rock7: folds
kissed: folds
luckyshades: raises 2010 to 2410 and is all-in
TruckBuilder: calls 1960 and is all-in
CASINOADDICT: calls 1710 and is all-in
Menace_b: calls 1605 and is all-in
*** FLOP *** [4h 9d 3h]
luckyshades said, "ouch"
*** TURN *** [4h 9d 3h] [Kh]
*** RIVER *** [4h 9d 3h Kh] [Qs]
*** SHOW DOWN ***
luckyshades: shows [8s 8h] (a pair of Eights)
CASINOADDICT: shows [4d 7d] (a pair of Fours)
luckyshades collected 200 from side pot-2
TruckBuilder: shows [Ac Ad] (a pair of Aces)
TruckBuilder collected 15 from side pot-1
Menace_b: shows [9h Ah] (a flush, Ace high)
Menace_b collected 8045 from main pot
*** SUMMARY ***
Total pot 8260 Main pot 8045. Side pot-1 15. Side pot-2 200. | Rake 0
Board [4h 9d 3h Kh Qs]
Seat 1: 7Rock7 (button) folded before Flop (didn't bet)
Seat 2: kissed (small blind) folded before Flop
Seat 3: luckyshades (big blind) showed [8s 8h] and won (200) with a pair of Eights
Seat 4: TruckBuilder showed [Ac Ad] and won (15) with a pair of Aces
Seat 5: CASINOADDICT showed [4d 7d] and lost with a pair of Fours
Seat 7: Menace_b showed [9h Ah] and won (8045) with a flush, Ace high
Seat 8: Sorinaccio folded before Flop (didn't bet)
Seat 9: F Fairlane folded before Flop (didn't bet)

cards win %win lose %lose tie %tie EV
8s 8h 197256 18.16 887340 81.71 1412 0.13 0.182
7d 4d 178741 16.46 905855 83.41 1412 0.13 0.165
Ac Ad 597219 54.99 475926 43.82 12863 1.18 0.556
Ah 9h 99929 9.20 973216 89.61 12863 1.18 0.098