ok, in the comics, some other guy is the hobgoblin. harry is another green goblin and he's the one who kills gwen stacy. the hobgoblin was a criminal who stumbled upon all of the original green goblin's crap, then he took one of his friends and tried ou tthat machine that enhances everything and stuff, and it worked so he killed his frined, and altered the mask a wee bit and became the hobgoblin.