I read an article saying the pills were thyroid and another were Tylenol based.
The article said these even if taken in large quantities would typically not cause death by overdose.
In my view the pills are the biggest problem.
It’s looks like “amateur staging” to me.
Still her cause of death holds the key as she appeared to be a very healthy 63 year old.
Upon further thought, the dog in the kennel is rational. Perhaps they put this particular dog in a kennel at bedtime because it pees in the house at night. This would indicate his or her death occurred during the night or early morning, otherwise the dog would've been released from the kennel.