I'm only looking at the facts and the law.
So in the absence of a video showing a murderer committing a crime, how does a jury decide whether someone is guilty or not? Evidence, testimony, statements, common sense, all of which can be interpreted differently by different individuals. It's not so black and white.
Also - I am finally caught up on this thread - hard, as I am in the US and always a day behind, but thank you, thank you, thank you to all the posters who post updates from the trial.
I think the Prosecution's closing was stellar overall - though do agree some of the points of ambiguity around whether vomiting could expel toxins and that the meat given to the children could not have been the one from the BWs could have been made more explicit. However, if the jury disbelieves Erin's accounts about vomiting at all and that they ate that meat given her reluctance to bring the children to the hospital, it won't really matter.
I do think the Defense's strongest arguments lie in whether her actions after the fact (which are pretty damning) truly are those of a cold, calculating murderer or just someone who panicked, because that sort of question comes up all the time here at Websleuths - would they have been that stupid to have done/not done X, Y, and Z if they really wanted to get away with murder?
My counterpoint to that question is..."Why would anyone commit murder if they didn't think they were going to get away with it?"
In my opinion and experience of following these cases of premeditated murder, I never think it's stupidity that gets murderers caught - it's arrogance. They truly believe that their carefully (at least in their minds) prepared lies will be believed hook, line, and sinker by "dumb cops" that certainly couldn't be smarter than they are. And if they have any NPD/sociopathic tendencies, it's an inability to anticipate the reactions and actions of people with real emotions, empathy, and caring for others, especially those that they have long discarded and that have outlived their usefulness to them. A few examples of the top of my head:
Patrick Frazee - killed his girlfriend Kelsey Berreth and "Frazee expressed surprise in the media's interest in the case" in conversations with one of his friends. He also said "no body, no crime."
Barry Morphew - rolled up to the staged scene of his wife's mountain bike, shaking his head and said "Lion?", thinking that everyone would buy his story that a mountain lion got his wife, dragged her away, and that would be that, LE shrugs, says ain't that a shame and that's that. (Although still waiting for justice in that one!)
If there was any panic in Erin's actions, it was surprise that death caps were suspected so quickly, how concerned and insistent doctors were about making sure Erin and her children were not going to die, and the lengths that doctors and public health officials were willing to go to ensure that no other people would fall ill and/or die from these mushrooms. She may truly have believed that they would think, "Oh well, it's her problem if she dies. And oh, some old people died from gastro, maybe it was mushrooms, maybe it wasn't, we can't seem to find where they came from, such bad luck, tsk tsk" and that was that. But unfortunately for her, that's not how it works.