Is this bad play or collusion ??? (LC)

[Vavavoom]

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PokerStars Game #3331760903: Hold'em No Limit ($1/$2) - 2005/12/14 - 14:02:32 (ET)
Table 'Lutetia' Seat #8 is the button
Seat 1: teddyKK ($192.55 in chips)
Seat 2: BenLongwood ($270.10 in chips)
Seat 3: BurnInHell ($232.85 in chips)
Seat 4: dan1864 ($46.85 in chips)
Seat 6: beck_AA ($194 in chips)
Seat 8: AllTheWay33 ($376 in chips)
Seat 9: attta ($80.90 in chips)
attta: posts small blind $1
teddyKK: posts big blind $2
Va_va_voooom: sits out
*** HOLE CARDS ***
BenLongwood: folds
BurnInHell: calls $2
dan1864: folds
beck_AA: folds
AllTheWay33: folds
attta: calls $1
teddyKK: checks
*** FLOP *** [3c 2c Jh]
attta: checks
teddyKK: checks
BurnInHell: checks
*** TURN *** [3c 2c Jh] [5c]
attta: checks
teddyKK: checks
BurnInHell: checks
*** RIVER *** [3c 2c Jh 5c] [Ah]
attta: checks
teddyKK: checks
BurnInHell: checks
*** SHOW DOWN ***
attta: shows [Js Jc] (three of a kind, Jacks)
teddyKK: shows [6d 4d] (a straight, Deuce to Six)
BurnInHell: mucks hand
teddyKK collected $5.70 from pot
*** SUMMARY ***
Total pot $6 | Rake $0.30
Board [3c 2c Jh 5c Ah]
Seat 1: teddyKK (big blind) showed [6d 4d] and won ($5.70) with a straight, Deuce to Six
Seat 2: BenLongwood folded before Flop (didn't bet)
Seat 3: BurnInHell mucked
Seat 4: dan1864 folded before Flop (didn't bet)
Seat 6: beck_AA folded before Flop (didn't bet)
Seat 8: AllTheWay33 (button) folded before Flop (didn't bet)
Seat 9: attta (small blind) showed [Js Jc] and lost with three of a kind, Jacks

[crosse91]

what the hell? did they autocheck?

[pokerjoker]

I suppose its bad play. I am not sure what they are gaining here if it is collusion