I'll start just with my hand:

Full Tilt No-Limit Hold'em, $0.25 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($25)
BB ($56.30)
UTG ($32.85)
UTG+1 ($12.55)
MP1 ($10.35)
Hero ($27.45)
MP3 ($40.60)
CO ($20)
Button ($44.35)

Preflop: Hero is MP2 with K, A.
UTG calls $0.25, 2 folds, Hero raises to $0.5, 2 folds, SB calls $0.40, BB calls $0.25, UTG calls $0.25.

Flop: ($2) 5, J, 8 (5 players)
SB checks, BB bets $4.25, UTG raises to $14.75, Hero calls $14.75, SB folds, BB raises to $60.05 (All-In), UTG calls $17.60 (All-In), Hero calls $12.20 (All-In).

Turn: ($121.35) 6 (4 players, 3 all-in)

River: ($121.35) 8 (4 players, 3 all-in)

Final Pot: $121.35

I put both of my opponents on hitting the flush at the flop. I figured they'd both be all in for a huge pot, and therefor I'd get good implied odds with my ~25% chance to hit the nuts flush ($27 for a 105 pot). Of course the next card comes and makes a straight flush. Was this a stupid call by my part, or a good play with a bad beat? Please rip me apart if this was not the right call so I can atleast learn from it