Beat: is this normal @ poo-fling poker?

[mbillie1]

So I've been trying to learn limit, since NL pwns me. Is this guy retarded, or is this normal?

PokerStars Game #9854498207: Hold'em Limit ($0.50/$1.00) - 2007/05/11 - 07:23:59 (ET)
Table 'Hansa' 6-max Seat #4 is the button
Seat 2: HerrZinfarkt ($15.95 in chips)
Seat 3: photolab77 ($18.80 in chips)
Seat 4: mb119982 ($27.35 in chips)
Seat 5: heythere733 ($19.45 in chips)
Seat 6: chainrx ($22.05 in chips)
heythere733: posts small blind $0.25
chainrx: posts big blind $0.50
photolab77: posts big blind $0.50
*** HOLE CARDS ***
Dealt to mb119982 [As Ts]
Asif Ihwud is connected
HerrZinfarkt: folds
Asif Ihwud leaves the table
photolab77: checks
mb119982: raises $0.50 to $1
heythere733: folds
chainrx: calls $0.50
ztaffi joins the table at seat #1
photolab77: calls $0.50
*** FLOP *** [Jc 4s 4h]
chainrx: checks
photolab77: checks
mb119982: bets $0.50
chainrx: calls $0.50
photolab77: calls $0.50
*** TURN *** [Jc 4s 4h] [Tc]
chainrx: checks
photolab77: checks
mb119982: bets $1
chainrx: calls $1
photolab77: folds
*** RIVER *** [Jc 4s 4h Tc] [Ks]
chainrx: bets $1
mb119982: calls $1
*** SHOW DOWN ***
chainrx: shows [Kc 3s] (two pair, Kings and Fours)
mb119982: mucks hand
chainrx collected $8.35 from pot
mb119982 said, "wow"
*** SUMMARY ***
Total pot $8.75 | Rake $0.40
Board [Jc 4s 4h Tc Ks]
Seat 2: HerrZinfarkt folded before Flop (didn't bet)
Seat 3: photolab77 folded on the Turn
Seat 4: mb119982 (button) mucked [As Ts]
Seat 5: heythere733 (small blind) folded before Flop
Seat 6: chainrx (big blind) showed [Kc 3s] and won ($8.35) with two pair, Kings and Fours