Yes, prior reporting covered that she had a heart condition and she was extremely aware that too much caffeine would kill her. The lemonade was clearly labeled with its caffeine content. It didn’t say it was extreme, but it was clearly labeled with how much is in it. The story that “she didn’t know” doesn’t add up unless she was just being wildly negligent.
As someone with a food allergy, I check everything I eat for my allergens. If I’m not sure what’s in it, I don’t eat it. And all that will happen to me is I’ll feel ill for a while. Anyone with a lethal condition damn well knows better.