And now for my response:
You're a much greater threat to the English language than you are to Sam Shamoun. Is that your real jihad? Are you trying to destroy the West from within by declaring war on proper grammar and spelling? Well then, since I'm a counter-jihadist, I suppose I should counter your jihad. Let me take you back to first grade on this one. As for your latest threat, "I" should be capitalized, both because it's at the beginning of a sentence and because it's always capitalized as a pronoun. You should also include an apostrophe between the "I" and the "m" (because it's a contraction). "Of" should be "off" (ripping someone's head "of" makes no sense). Be sure to add either a period or a semicolon after "off." If you decide to use a period, make sure you capitalize the next word, as it will begin a new sentence. And don't forget to add a period (or perhaps an exclamation point) at the end of your threat. Here are some examples of acceptable threats to rip Sam's head off:
"I'm going to rip his head off. You will all see it."
"I'm going to rip his head off; you will all see it."
Or, if you'd like to add emphasis, go with exclamation points and all caps:
"I'M GOING TO RIP HIS HEAD OFF! YOU WILL ALL SEE IT!"
Then again, you could try the honest route:
"I'm a sniveling crybaby who's jealous of Sam, because he's roughly 300,000 times smarter than my prophet and all of his companions combined. Since there's no possible way I could ever beat Sam at anything, I'll sit in my room and post highly unimaginative death threats while I'm grounded for getting beaten up at school by a Jewish kid."
You made a lot of errors in a single line of text. On the plus side, however, you're practically a language scholar compared to your prophet, who was completely, totally illiterate (not to mention a pervert, who was too busy raping his child bride to worry about improving his cerebral abilities). Since you come from humble intellectual beginnings, I'm going to bump you up to an F+. This is probably the best grade you've ever received, so go ahead and hang it on your mom's refrigerator, right next to the autographed picture of your childhood hero, Osama bin Laden.
Until your next proclamation of your utter inability to engage critics on a rational level . . .