I agree. CR Sr. really stepped up for his family in buying the new home. It seems to me that both CR Sr. and DR worked very, very hard for their family and I think they were very good parents.
Others have talked about revenge and I do think there was an element of that in the motive. Perhaps a big element of it. HR dumped JW and she took her child with her and romantically, she moved on quickly. She left JW in the dust. She refused to allow herself to continue to be abused and her family stood firmly behind her and they supported her.
JMO, I think she was being very fair in the amount of time she allowed JW to have the child and if JW had an attorney to try to get custody before the murders, this may have really frustrated any attempts he may have tried to make to get custody. JMO, I don't think he had ANY legitimate arguments that could be made from a legal standpoint to take custody away from HR. If the single wide trailer was an argument that JW was trying to use (speculation), that argument would have been eliminated completely by DR's new home, because that new home was very nice and it had plenty of room.
The timing of the murders does coincide rather closely with the purchase of DR's new home. If there are no trials, we may never know certain aspects of this case. All JMO.