If you decide to use Twitter for evil, you must be prepared to catch the Internet fade. Media personality, and part-time buffoon, Tour learned this lesson earlier today when he posted an insensitive joke on his Twitter feed. "New slang! You're Zimmering me = You're killing me," he wrote regarding the senseless shooting of 17-year-old Trayvon Martin. The Florida teen was shot dead by 28-year-old George Zimmerman, ...