With rational discussion, we tend to change our theories over time.
When JB was killed, I was working for a large newspaper in the east. Not long after the murder, IDI was being discussed around our newsroom. One of our editors piped up and said in so many words: "JB was a constant bed-wetter and it drove her mother crazy. JB wet the bed Christmas night. The mother was exhausted, snapped, went into a rage and slammed JB in the head knocking her out. The child could not be revived; the mother had to kill her so as not to be charged with child abuse." We all sat there with our mouths hanging open. It was incredible speculation but it became the popular theory at that time.
Over the years we would speculate about this astounding murder. My media colleagues didn't think IDI credible, but we remained open-minded and changed our theories constantly. Most popular was PDI, followed by JDI. I don't recall any discussion during the 90's to early 00's of BR, but as time went by BDI made sense to some of us. Just when I'm convinced I've got it, a detail I've overlooked changes my mind yet again.