How did green goblin die?

It's 'Marvel' - of course he died! I remember some time ago, he died, came back as an undead spider-zombie-man-hybrid-creature and then reverted back.

AnswerAs regards to the last Answer is In some way incorrect as Spiderman 616 (the original) has yet to 'Bite the Dust', Marvel Zombies is Not Canon (which means Basically Main Story Lines NOT limted Series) ,Also The Marvel Zombies Universe is identified as Earth-2149.