Of course, Oswald's prints on the SN boxes are not the only evidence. His prints are also on a long bag next to the window. Fired shell casings from a rifle belonging to him are by the window from which witnesses confirm the shots were fired. And, oh yeah, his rifle was left on the floor. He fled the scene and murdered a police officer. Oswald lied to the DPD about his ownership of the rifle and many other things. But us gullible types are just accepting the "official" story. Cue sinister music.
But us gullible types are just accepting the "official" story. Well, let's see....
You blindly accept that there was indeed "a long bag next to the window", just because a cop said so.
You blindly accept that the rifle found at the TSBD was "his rifle" despite the fact that it doesn't match the description of the rifle Oswald allegedly ordered.
Yeah, I'd say that's pretty gullible.