When you start playing this game, why don't you first name the witnesses who actually saw a rifle being fired from the window on the 6th floor of the TSBD?
Howard Brennan? Harold Weisberg called him "the least credible man in the world." Or Amos Euins? And there were, as I recall, three ear-witnesses on the fifth floor of the TSBD who heard the shots being fired, the working of the bolt and the shells dropping on the floor above them. Of course all this is disputed.