Borgata live NL500 hand - I'm sure I misplayed this one

[NajdorfDefense]

I get Kc4c in blinds. 5 limpers including Old Guy, I check.

Flop comes Jc7c4h.

I lead out for $20, called by MP and OG.

Turn is a 2s, I check, MP checks, OG bets 40, I call 40, MP raises to 90, OG goes all-in.

WTF do I do now? Should I have just led out on turn?

At this point, OG had been playing solid so I folded here. [Vomit, right?] MP called.