That doesn’t explain the pills found around his wife’s body.
Maybe she had a headache.
She didn’t know she was being poisoned.
Carbon monoxide poisoning give you a head ache. That explains the pills
She may have thought she was coming down with something and was reaching for medication, not knowing the poison was all around her.
Carbon monoxide poisoning can cause dizziness, nausea, and more symptoms, upto and including death.
Unless she passed out while opening the bottle. Weird & RIP Gene.
Could be she came home, saw her husband dead on the floor and decided to off herself(The door was wide open so it will be interesting to find out when anyone had contact with her or when she was last seen at any store)..and the dog in the kennel died of starvation..the two dogs who are alive were roaming around the house so maybe they had access to food/water