I agree w/ you OBE in that he had faith in his son, I don't believe for a second he would've allowed the access if he any inkling it wasn't a good idea. I do believe he had his son's best interests at heart and I respect that you feel he (VR) bears no responsibility.
I don't mean to say it out and out his fault, but I do think he is somewhat culpable as what I perceive as his lack of judgment in leaving an 8 y/o home alone, for even an hour, in a house w/ access to guns...well you get my drift I hope.
And the world has changed much, and parents need to also, though my mother NEVER would have left me home at 8, there were things that were done differently than are done now. So I'm not sure what our parents did w/ us is nearly as applicable as what we do w/ our children now. Did that make sense?
And I know thru all my intensive research in this case I came across multiple things that suggested all guns were kept unlocked in the master bedroom, I'll look for the links later. Tho the point is moot as I already know his father was fully within his rights, whether people disagree or not, he did nothing wrong.
I thought I heard he got home at 3, which would make it 2 hours, but I could be wrong. And that point is also moot as I already answered my own question in regards to that issue. Here is a quote and link for anyone else who was curious, but apparently he (VR) did NOT do anything wrong, under the law as a parent as far as I can tell
CPS has identified situations (that could cause a substantiated risk of harm to children who are alone) that are taken as reports for investigation. For example: - Children under the age of six; - A child of any age who cannot care for his or herself due to a physical, emotional or mental inability; - Children six to nine years of age, for three hours or longer; or it is unknown when the parent will return.
https://egov.azdes.gov/CMSInternet/main.aspx?menu=154&id=2122&ekmensel=15074e5e_154_158_2122_24