If we are c/c here.. Do we miss value by not v/b this river ?

Villain 28/13/3.8/121hands

Full Tilt Poker Game #29149226763: Super Stack $15K Guarantee (226440984), Table 54 – 2500/5000 Ante 600 – No Limit Hold'em – 01:19:24 ET – 2011/03/19
Seat 1: lukpg (52,054)
Seat 2: shake 1023 (264,768)
Seat 3: TDL_Intimidator (41,635)
Seat 4: UK-Diamond-Dice (228,761)
Seat 5: MattyG696 (180,111)
Seat 6: R1K16 (411,617)
Seat 7: POBHO (51,260)
Seat 8: leeroy82 (201,770)
Seat 9: dapperdan08 (199,525)
lukpg antes 600
shake 1023 antes 600
TDL_Intimidator antes 600
UK-Diamond-Dice antes 600
MattyG696 antes 600
R1K16 antes 600
POBHO antes 600
leeroy82 antes 600
dapperdan08 antes 600
R1K16 posts the small blind of 2,500
POBHO posts the big blind of 5,000
The button is in seat #5
*** HOLE CARDS ***
Dealt to R1K16 [Kc Ad]
leeroy82 folds
dapperdan08 folds
lukpg folds
shake 1023 raises to 20,000
TDL_Intimidator folds
UK-Diamond-Dice folds
MattyG696 has 15 seconds left to act
MattyG696 folds
R1K16 calls 17,500
POBHO folds
*** FLOP *** [Kh 5d Qs]
R1K16 bets 22,999
shake 1023 calls 22,999
*** TURN *** [Kh 5d Qs] [4s]
R1K16 has 15 seconds left to act
R1K16 bets 49,999
shake 1023 calls 49,999
*** RIVER *** [Kh 5d Qs 4s] [3c]
R1K16 checks
shake 1023 checks
*** SHOW DOWN ***
R1K16 shows [Kc Ad] a pair of Kings
shake 1023 mucks
R1K16 wins the pot (196,396) with a pair of Kings
*** SUMMARY ***
Total pot 196,396 | Rake 0
Board: [Kh 5d Qs 4s 3c]
Seat 1: lukpg folded before the Flop
Seat 2: shake 1023 mucked [Ks Th] – a pair of Kings
Seat 3: TDL_Intimidator folded before the Flop
Seat 4: UK-Diamond-Dice folded before the Flop
Seat 5: MattyG696 (button) folded before the Flop
Seat 6: R1K16 (small blind) showed [Kc Ad] and won (196,396) with a pair of Kings
Seat 7: POBHO (big blind) folded before the Flop
Seat 8: leeroy82 folded before the Flop
Seat 9: dapperdan08 folded before the Flop