why were they at the top of a grassy knoll? this would add some evidence, some hard evidence to the belief that, perhaps, other people were not involved, perhaps there was a second shooter by the defense. i am convinced that if there was the second shooter behind the picket fence he either did not fire or missed entirely because the bullet trajectories clearly go to the window on the sixth floor where someone fired, and i believe the overwhelming amount of evidence suggests it was lee harvey oswald. >> host: his fingerprints were on -- >> guest: there were on lots of things. he clearly thought that rifle, mail order rifle. think about this. the president of the united states was killed with a $19 rifle. >> host: i did a little research. actually it was considered to be a fairly good rifle. it was not the conspiracy theorists have tried to suggest that it was just, you know, a very bad rifle, but it actually is considered to be above-average as far as -- >> guest: the scope was off. that is often what people question whether he