Since Luke bumped this thread, I went back and read it. If I understood correctly Bentley said the suspect was Robert Hunter Sr. Actually the suspect was Robert Hunter Jr. RH Jr. worked for Crocker Bank and lived on Washington St. in San Francisco. He later, while maintaining his SF residence bought property in Kenwood, Sonoma County. That property is where his winery is now.
His son Robert Hunter III pretty much runs it.
Here is a document for his Sonoma county property which shows his Washington St address in San Francisco, also his signature.
Robert Hunter Jr. was also accused of committing some or maybe all of the Santa Rosa Hitchhiker murders in Harry Martin's articles. Supposedly the purchase of the Sonoma County property was what put him in Sonoma County at the time of the murders. In reality Hunter did not purchase his property until September 18, 1972 when there had already been four victims. Also it is stated in Harry Martin's articles that Hunter had access to Franz Valley Road because he was on the Board of Directors for the California Academy of Sciences which owned Pepperwood Ranch located less nthan a mile from where the Franz Valley Road victims were found.
Pepperwood Ranch at the time of the the murders was owned by Kenneth Bechtel, yes THAT Bechtel family. Upon Kenneth Bechtel's death in 1979, seven years after the first murders, Pepperwood Ranch was transfered to Belvedere Scientific Fund who in turn donated it to the California Academy of Sciences as per Kenneth Bechtel's wishes. I do have copies for the legal docs on this, if you want me to post, I will.
So you see much of what Harry Martin claims regarding Robert E Hunter Jr. is just flat out wrong and the proof can be shown with legal documents.
Now, to further complicate things, there was a Robert E Hunter associated with the Franz Valley Road property where the three murdered girls were found! I kind of doubt that Harry Martin even knew this as it's pretty stealth information and the connection did not occur until after the murders.
The other Robert E Hunter was an attorney in San Francisco who represented the adult grandchildren of the woman who owned and lived at the property during the time of the murders. He was hired by them after the death of their grandmother in 1978.