This one had me confused.

UB $200, no reads.

pannella is at seat 0 with $134.20.
ISmokeRox is at seat 1 with $85.70.
jeep200 is at seat 2 with $218.65.
Hero is at seat 3 with $456.95.
sd1969 is at seat 4 with $66.
usahana is at seat 5 with $284.25.
BLBM_G is at seat 6 with $50.45 (sitting out).
kg_champion is at seat 7 with $168.
harley57 is at seat 8 with $155.80.
dustoff760 is at seat 9 with $196.45.
The button is at seat 0.

ISmokeRox posts the small blind of $1.
jeep200 posts the big blind of $2.

pannella: -- -- -- --
ISmokeRox: -- -- -- --
jeep200: -- -- -- --
Hero: 6c Kd Qs Qd
sd1969: -- -- -- --
usahana: -- -- -- --
kg_champion: -- -- -- --
harley57: -- -- -- --
dustoff760: -- -- -- --

Pre-flop:

Hero calls. sd1969 raises to $4. usahana
folds. kg_champion folds. harley57 folds.
dustoff760 folds. pannella folds. ISmokeRox folds.
jeep200 folds. Hero calls.

Flop (board: 5d Ts 8d):

Hero checks. sd1969 bets $5. Hero
raises to $26. sd1969 calls.

Turn (board: 5d Ts 8d Ks):

Hero bets $63. sd1969 goes all-in for $36.

[joewatch]

First, Villain is playing shortstacked, so either he is awful, or is a good shortstack player who has recently joined.

OK, assuming that villain is reasonable, I really don't like your check-raise here, because by doing so, if you are called or reraised, you are pot-commited even though you might have the worst hand. I think leading the flop is much better.

If stacks were deeper, I think your check-raise on the flop would have been fine.

[Jim T]

Maybe he read you as a LAG who would double him up by bluffing with the 2nd nut flush and a pair?

[BluffTHIS!]

Possibilities:

1) He had a set and thought he might lose your action by reraising the flop;

2) He had aces and will never fold them headsup no matter how the board comes when it doesn't help him;

3) He had aces and suspected a checkraise on the come by you and again wanted to keep you in and see if a draw got there on the turn before committing the rest of his stack.

What part confused you? The part where you check-raise a weak hand on the flop and then commit the rest on the turn?