Here's a link to another detailed news article that cleared up some questions:
28 Oct 1962, 2 - The Honolulu Advertiser at Newspapers.com
It says the fingerprints on the dial of the phone were JR's.
It says the neighbor who saw the blue/gray car Hhad seen it a few times in previous months. She had even memorized three of the numbers on the license plate.
The reporting is a bit inconsistent, so take some of it with a grain of salt. For instance, it says fingerprints were found and compared to others, then later says there were no fingerprints. Could just be a lack of clarity in writing.
Harvard Med School said they couldn't tell if Joan's blood came from a wound or hemorrhage (epithelial)
A search of the woods extending 100 yds from the Risch home
found a woman's panty girdle and a pile of "girly magazines". I thought the latter was interesting. Was there a neighborhood stalker/peeping tom? Someone who might have snuck into the Risch home, or someone else's to steal undergarments? Kind of an isolated area, JMO, it would have been someone who lived (or used to) around there or visited regularly.
JMO, it's possible there was a neighborhood stalker - someone's husband or adult son. This might have been hushed up. Kind of reminds me of theories about the killer of Valerie Percy - daughter of then Senate candidate & Bell & Howell exec Charles Percy. Valerie was bludgeoned and stabbed to death inside her bedroom in a very wealthy neighborhood north of Chicago. Her killer has never been determined, but one strong theory is that she was murdered by a mentally ill son of a wealthy corporate CEO who lived a few streets away. In some very wealthy communities, crimes committed are sometimes covered up to save reputations.
Link to Valerie's thread here at WS
IL - IL - Valerie Percy, 21, Kenilworth, 18 September 1966