Robert Groden settles with Sixth Floor Museum in JFK-free speech victory. 1 Comment / Assassination / By Jefferson Morley Persistence pays. Eventually the thought police will back off, especially if you have tenacious counsel like Brad Kizzia. No one can tell this JFK tale better than Dallas Observer’s inimitable Jim Schutze. Robert Groden Settles with Sixth Floor Museum in Kennedy assassination Battle. | Dallas Observer.