Here's something I find real odd about this case.
87 and 88 year old couple killed and apparently nobody stopped by the house for 4 days. Elderly people check in on each other especially when they were expected at a party and didn't show up and don't answer their phone.
So this elderly couple was due to be at the derby party on Saturday and never showed up . Yes calls were made but no answer. Sorry but something isn't right here. Whoever called to check on them knew they were elderly and had no family close by and decided they'd just go over there in a few days if no response? I could see them waiting a day but 4 days no way. Elderly people always have people to check on them and the Dermonds had friends out there. Elderly people are also nosey and paranoid . I've volunteered in assisted living homes and I know for a fact elderly people are very protective of their communities they know when people have visitors , they know when a car drives down their road, and they constantly check on each other and aren't afraid to call the police with their suspicions.
I have always thought it was suspicious that no one checked on the Dermonds for 4 days. Four days!!!! I can understand the family might not be especially close, although I try to call my mother every day or every other day. She is 74. My MIL is 85 and she gets a phone call too. I agree that the D's could very well have lived into their 100s. Did someone get impatient that these people weren't dying soon enough? That's a horrible thought!
1. They had RSVP'd to the Kentucky Derby party. This too has always been curious to me. I believe we have read that the neighbors that hosted the party called when the D's were no shows. I can understand not leaving the party to go and check on the D's, but come on, even after the party no one cared to drive on down to the D's and at least peek around????
2. They did not show up for church service on Sunday. Why didn't Keyes call to check on members of his flock? Maybe he did. Did members of the church also attend the Kentucky Derby Party? I think if I had missed them at the party and then missed them at church that would warrant more phone calls and yes even a drive down to the D's home.
3. I'm sure the D's probably had their mail held if they were going to be out of town for any length. It's not good to let newspapers and mail pile up. When the mail person delivered the mail Monday and Saturday's mail was still in the box did they wonder if something was up?
4. It was only Tuesday when Mrs. D was scheduled to play bridge that someone went to check on them. Four days! The person or persons who did this certainly planned well for these murders.
5. The female relative that lied to SS. That really bothered me too. What on earth could a relative lie about when the parents/grandparents have been murdered?? I'm racking my brain and can't come up with a good excuse. And for SS to tell us that the family members had been cleared?? Really!! Come on! Who does he think he's fooling?
6. The cinder blocks. I think the killer brought them in a boat. I keep thinking about Scott Peterson who made weights especially for sinking a body (JMO). I believe these were landscaping cinder blocks. I don't think Mrs. D was murdered in the home. I think it was much easier for the killer to march her to where they had docked the boat and then hit her on the head from behind. Just my theory that this event began early Saturday morning and they left Saturday night and dumped Mrs. D's body as they left the lake.
IMO, the person or persons who did this were in the D's inner circle and were well aware of the Party that weekend. If not in the D's inner circle, then it was someone still very close to them, like you say Hockeyguy, whose DNA and fingerprints were not unexpected at the crime scene.