And again, Swanson wasn't trying to impress anybody, the notes were for his own use. I can't imagine him purposely embellishing facts to convince his own self.
As for proof against the man being followed, of course there wouldn't be much proof since he didn't kill while being followed. That is not to say there wouldn't have been good reason for him to be followed and it's not to say he wasn't the man identified AFTER he was followed. The only real point is that he didn't provide any proof of guilt WHILE being followed. You could also point to the cessation of the killings while he was under watch as circumstantial evidence.
As for proof against the man being followed, of course there wouldn't be much proof since he didn't kill while being followed. That is not to say there wouldn't have been good reason for him to be followed and it's not to say he wasn't the man identified AFTER he was followed. The only real point is that he didn't provide any proof of guilt WHILE being followed. You could also point to the cessation of the killings while he was under watch as circumstantial evidence.
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