I wonder what was so important that night that Oswald thought he might be killed or arrested for and needed to leave instructions for Marina on what to do? Not to mention having photos of Walker's home. I guess we are only left to ponder since no explanation is forthcoming. Nothing to see there.
The kind of note that the contrarian thinks Oswald would have left:
Dear Marina -
Don't wait up. I'm off to kill General Walker.
Love,
Lee Harvey Oswald
Of course, if he had left such a note then we would be lectured on how handwriting analysis is not scientific and on and on and on down the rabbit hole. btw: Marina not was convinced that he tried to kill Walker based on the note. It was the fact that Oswald TOLD her that is what he did. LOL. These dishonest contrarians are hilarious. Implying something sinister about Marina concluding from the note that Oswald tried to kill Walker when they know she was TOLD by Oswald that night that he tried to kill Walker. Good grief.