The Overbet for Value

Been putting some things together and feeling better about my game.  Villian here is pretty fishy so as soon as he called my re-raise on the turn I figured the overbet for value on the river had a very high probability of being successful.  I think the chat might have gotten him over the last hump to click the call button.  Nasty cooler for him.  I'd like to think I could have gotten away from the flopped two pair....could you?

PokerStars Game #48145852603:  Hold'em No Limit ($0.25/$0.50 USD) - 2010/08/14 9:29:25 PT [2010/08/14 12:29:25 ET]
Table 'Merapi' 6-max Seat #4 is the button
Seat 1: mmarcshark ($25.75 in chips)
Seat 2: JIEBPAH ($9.75 in chips)
Seat 3: gmiko ($25.75 in chips)
Seat 4: mr. gulaman ($52.30 in chips)
Seat 5: palcevmglazz ($25.50 in chips)
Seat 6: DubsPoke ($59.25 in chips)
palcevmglazz: posts small blind $0.25
DubsPoke: posts big blind $0.50
*** HOLE CARDS ***
Dealt to DubsPoke [8d 8c]
mmarcshark: folds
JIEBPAH: folds
gmiko: folds
mr. gulaman: calls $0.50
palcevmglazz: folds
DubsPoke: checks
*** FLOP *** [3s 8h Jc]
DubsPoke: bets $0.50
mr. gulaman: calls $0.50
*** TURN *** [3s 8h Jc] [Ac]
DubsPoke: bets $1.50
mr. gulaman: raises $1.50 to $3
DubsPoke: raises $6 to $9
mr. gulaman: calls $6
*** RIVER *** [3s 8h Jc Ac] [9s]
DubsPoke: bets $49.25 and is all-in
mr. gulaman said, "J8"
DubsPoke said, "really?"
mr. gulaman said, "no"
mr. gulaman said, "lol"
mr. gulaman: calls $42.30 and is all-in
Uncalled bet ($6.95) returned to DubsPoke
*** SHOW DOWN ***
DubsPoke: shows [8d 8c] (three of a kind, Eights)
mr. gulaman: shows [Jh 8s] (two pair, Jacks and Eights)
DubsPoke collected $101.85 from pot
*** SUMMARY ***
Total pot $104.85 | Rake $3
Board [3s 8h Jc Ac 9s]
Seat 1: mmarcshark folded before Flop (didn't bet)
Seat 2: JIEBPAH folded before Flop (didn't bet)
Seat 3: gmiko folded before Flop (didn't bet)
Seat 4: mr. gulaman (button) showed [Jh 8s] and lost with two pair, Jacks and Eights
Seat 5: palcevmglazz (small blind) folded before Flop
Seat 6: DubsPoke (big blind) showed [8d 8c] and won ($101.85) with three of a kind, Eights