Mountain Dews

Not everyday I learn something new at stud, so this was cool...
Game is tough with what seems to be two good players in the pot with me.
The hand went like this... After I was perplexed as to why seat capped 4th if he paired, as it seems like that's the only hand that makes sense in which he would fold the river. As if he paired his 8 he would call with trips, and if he had two pair it would be a stretch to do what he did on 4th then fold aces up on 7th. So I think his range definitely has a 3 in the hole. so why would he cap 4th with two low cards and a low pair when he knows hes not isoing me ever!? First here's the hand. What would you do on 4th in villains spot if he did in fact pair his 3?

Poker Stars $10/$20 Limit Stud Hi/Lo $1 Ante - 8 players - View hand 892444
The Official DeucesCracked.com Hand History Converter

3rd Street: (0.8 SB)
Seat 1: xx xx 5____Seat 1 calls
Seat 2: xx xx T____Seat 2 folds
Seat 3: xx xx 5____Seat 3 folds
Seat 4: xx xx 2____Seat 4 brings in for $3____Seat 4 folds
Hero: 4 K K___Hero completes
Seat 6: xx xx J____Seat 6 calls
Seat 7: xx xx 7____Seat 7 folds
Seat 8: xx xx 8____Seat 8 folds

4th Street: (4.1 SB) (3 players)
Seat 1: xx xx 5 3____Seat 1 bets____Seat 1 3-bets____Seat 1 calls
Hero: 4 K K A___Hero checks___Hero calls___Hero calls___Hero calls
Seat 6: xx xx J 2____Seat 6 checks____Seat 6 raises____Seat 6 caps!

5th Street: (8.05 BB) (3 players)
Seat 1: xx xx 5 3 8____Seat 1 raises
Hero: 4 K K A T___Hero checks___Hero calls
Seat 6: xx xx J 2 9____Seat 6 bets____Seat 6 calls

6th Street: (14.05 BB) (3 players)
Seat 1: xx xx 5 3 8 8____Seat 1 calls
Hero: 4 K K A T T___Hero checks___Hero calls
Seat 6: xx xx J 2 9 5____Seat 6 bets

7th Street: (17.05 BB) (3 players)
Seat 1: xx xx 5 3 8 8 xx____Seat 1 folds
Hero: 4 K K A T T 9___Hero checks___Hero calls
Seat 6: xx xx J 2 9 5 xx____Seat 6 bets

Well
It turns out even if he paired his 3 his equity is still better than ours 3 ways! TBH i think its pretty sick to have 36% 3 ways on 4th so good cap by him as it works multiple ways. He in fact has the best equity, and also reps a very strong range building fold equity. NH
http://propokertools.com/simulations/show?g=s8&h1=Ad+3s+|+5h+3h+&h2=4s+Kh+|+Kc+As&h3=*c+*c%2C+J+*%2CAA%2C+JJ+|+Jc++2c

[url=http://propokertools.com/simulations/show?g=s8&h1=Ad+3s+%7C+5h+3h+&h2=4s+Kh+%7C+Kc+As&h3=%2Ac+%2Ac%2C+J+%2A%2CAA%2C+JJ+%7C+Jc++2c]ProPokerTools Stud Hi/Lo Simulation[/url]
600,000 trials (Randomized)
Ad 3s | 5h 3h  [b]36.62%[/b] (128,077 scoops, 145,098 wins hi, 21 ties hi, 201,034 wins lo, 209 ties lo)
4s Kh | Kc As [b]32.40%[/b] (132,048 scoops, 230,737 wins hi, 20 ties hi, 30,630 wins lo, 133 ties lo)
*c *c, J *,AA, JJ | Jc  2c [b]30.98%[/b] (129,973 scoops, 224,140 wins hi, 9 ties hi, 30,844 wins lo, 122 ties lo