Oh, I didn't know that. I worked on the arm chair sleuthing of that with someone who was doing a lot more than arm chairing it (a person now deceased - I'm sure they know who it is).
I saw all of it unfold (on TV and later, the scene) and also believed it to be murder, until later. In the end, I just wasn't convinced that anyone else was involved.
If it came out that someone did somehow cause it to happen, I have two ideas about that, too.
You possess astute powers of deduction and a a devotion to the truth. The obscure case of Cliff Baxter was, however, ruled a "suicide" by the powers that be and the case is officially closed. The family is unconvinced and maintains that there was a cover-up.