that little clip of the recording came on the 6pm news (CHCH) again tonight.. and a couple of things stood out.. one is that the caller stated DW's height as being 5'11". If RB was both the perp,
and the caller, would his guess have been more accurate? I don't think 5'11" women are all that common, and would definitely stand out as being that tall, but DW was only 5'9" according to the autopsy report. That leads me to think the caller wasn't actually with her in person, but had perhaps been told (by the killer, or second/third hand?) that she was very tall, or perhaps 'taller than you', etc.
"(Diane was 5-foot-9. The caller put her at 5-foot-11.)" :
http://www.thespec.com/news-story/2198784-trying-to-establish-a-connection/
"Diane was 5 foot nine, 132 pounds. #Badgerow" :
Susan Clairmont Tweets from Kitchener Courthouse October 4, 2016 https://twitter.com/susanclairmont
The other thing was that when the police asked the caller if he had anything else, he said he 'didn't want to get involved'. If a killer is taunting the police by making a call like that (if killer, then what other purpose would the call have had?), it seems an unlikely thing thing to say, when asked if he had anything else.
I am feeling now like the caller wasn't the killer, but someone who had heard from perhaps the killer, or second/thirdhand, what had occurred, but not in every detail, ie the caller may have been told DW was strangled with her purse strap, but not have realized the strap of the purse was still around the victim's neck and was therefore easy for police to determine that's what she'd been strangled with; the victim was not wearing the sweater which was reported to have been pink, but the caller said red or orange top overtop of the white top; the height was said to be 2" taller than the victim was, so could the caller have just been told that the woman was very tall and he then guessed at the height; etc. The caller may have thought he was giving real, perhaps helpful, clues, but didn't want to out the killer (perhaps because he knew who it was), or have to testify. jmo