So the initial articles from the trial I shared didn’t include questioning about why she wrote them- that’s not to say it didn’t happen, just that it wasn’t reported and framed that she just wrote them off the cuff for no reason other than her own guilty conscience.
As you said there was no evidence in them- so until proved otherwise you will stick to your belief. The guardian did find evidence that she was advised to write them after the trial as a coping mechanism and reported it in the press.
Prosecutors used densely written Post-its to build case against nurse, but she was told to write down her feelings to cope with extreme stress, sources say
www.theguardian.com
You can accept one article or the other, or in fact do as most of us do, which is question what we was initially reported and shared in the trial, but what we can’t do is claim it’s a myth and state that as a fact- either journalist could be telling the truth, or a part truth we just don’t know.