Australia

This is like those casefile true crime stories, in the making

Wow, that's pretty damning. Innocent until proven guilty and all, but her husband almost dies from symptoms that sound like deathcap mushrooms, then a couple years later his parents and aunt died from the same symptoms after eating a meal she cooked, but she didn't get sick? Yeah, that's more than a little suspicious.

Not a great looking coincidence. It's difficult not to speculate and assign guilt, the more stories come out.