A few thoughts I can't get out of my mind.....First, thanks omegagal for posting the Eyes for Lies post. Some of the things that are said in that post are things that I wholeheartedly agree with.
I am no psychic, not pretending to be, nor do I have any faith in psychic phenomenon. Just thought I would say that right off the bat.
I too, believe that Susan was poisoned. In my mind though, it is not a "traditional" poisoning, such as a poisoning over time. IOW, I don't believe he was poisoning her for weeks or months. In my opinion, someone in that house was taking a prescription sleep medication, such as Ambien or something similar. I know that I have brought up Ambien before, but just as a recap....Ambien is not only a sleep medication, but also acts as a hypnotic. The medicine is a controlled release medication that puts you fast asleep with the first layer and the second layer, aka the hypnotic keeps you asleep. However, if there is a bad reaction to this medication and the user wakes up, they can be in a sleepwalk type state....hypnotic. They don't know what is going on and act out day to day activities, such as driving....etc...without even realizing what they are doing.
Why is this important and what does it have to do with anything in this case? It's my opinion that he possibly cooked this type of medication in her food that night. He may have thought he crushed up enough of it to render her unconcious for an amount of time that he thought would be sufficent for her to either 1) be dead or 2) have enough time to keep her in a state to where he could easily give her more drugs to make it look like an accidental overdose. Susan's report of how the marriage was improving and JoVonna's observations of their marriage would surely lend a lot of weight to Josh attempting to make things work. The plan went awry when he came home after "sledding" and discovered Susan dead on the livingroom floor. One could conclude IF a person were to have a hypnotic episode that they would instinctively go to act out the last thing they were doing before going to lay down. For Susan, that would be in the livingroom with her friend, learning to crochet. Something may have happened, whether she fell, threw up and passed out or something along those lines. Of course you would have to think what he would have told the boys if they saw their Mommy on the floor. Maybe they saw, maybe they didn't. He could have told them she is sleeping.
I also have to agree that it's more likely that he went in the opposite direction of what he said to the police and media. I've mentioned it before, but there is a Pony Express RV resort Northeast of WVC. Completely opposite of what he told LE/media. The interview of him near the rental car with the navy blue cap is very bizarre. He seems unsure of himself and agrees with what ever the reporter says. If you listen to the end of the interview when the reporter asks him something to the effect of "So you thought it was Sunday, you thought you lost a day?" [paraphrasing] and he simply says "Yeah". But the way he said it was weird. It reminded me of a small child who was admitting to wrongdoing. It wasn't someone who was sure of where they were, it was more like he was making up things as they went along. His hesitation when relaying what he did was really the most troubling aspect, IMO.
I don't know what else to think right now. I just think he is so bizarre, but I can't put my finger on what is wrong with him (besides believing he is a killer). I want to say Asperger's Syndrome. My son has Autism Spectrum Disorder (non-Asperger's). My son is only 9, but I see a lot of the emotional (or lack of emotion, I should say) responses he would have. I wish I had a better way of explaining it.......