Friends and fans of Dick Gregory took to twitter to express their condolences over the passing of the legendary comic and social activist at the age of 85 last night. Samuel L. Jackson, Wesley Snipes, Big Boi of Outkast, John Legend, Jesse Jackson, Lord Jamar, DL Hughley, Talib Kweli, Al Roker, Russell Simmons, LeVar Burton, Corey Booker, Chuck D, Larry Wilmore, Neil deGrasse Tyson, David Simon, Jesse Williams and Ava DuVarney were just a few of Gregory's admirers who voiced their thoughts.