Well, I had also taken that into consideration, that he had, or may have. just woken up, but, I honestly can't see any circumstances, including that, that any person, under the circumstances could Not be Incredibly Shaken (for lack of a better term). I have lots more thoughts on DR, but, trying to just attempt to address a couple things at one time. I personally think No Way that he is the Gunman, that he did the Act, and by himself, and there's more, but, again, can't, and/or, don't want to try and address all aspects at same time. I also think there is a lot on that interview, that I'm referring to (linked in my previous post) that makes DR look incredibly innocent. He, according to him, had no qualms at all about being questioned, doing a polygraph, having his car or property searched, being hypnotized and interviewed. I never heard anything about authorities considering him to be uncooperative in the very earliest hours, days, months of the investigation.
On another, related topic, I think that the LE should have Definitely searched his home and properties, if not that night, then they should have been secured and then searched the next day. I think DR's comment that if they had searched his house that night it'd have been all over; is him saying that if they had searched his home, etc, that night, they'd have found nothing and wouldn't be saying all these years later that he's the single POI.
Edit: 6:15 to add: I agree w/you (Scotgirl) and have been thinking the same thing, that, at this point, I think LE should be more concerned with whether they will ever be able to solve the case itself, to any degree whatsoever, before everyone involved or concerned is dead; than saying that they had to preserve the investigation to ensure prosecution. If it's ever resolved definitively, the perpetrator is going to be along in years to some extent, and I can't see how they could not get a satisfactory prosecution, regardless of information in the public domain!
