who killed spongebob?

i don't know what i can say to this shot...

i don't hate him, i love him hehe, he's so stupid and his friend even more... they're so great, so he didn't die so oh, no, it wasn't me I never would be such a coward and attack him from behind hahah...

edit: had to watermark it biger.. cos too many stupid people think they can steal pictures and change them like they want to..