I believe that he sent the package to her because he knows that she screwed with his head....and really messed him up. And that's why he told the cops about the package. If you haven't seen some of these meds at play, I'll tell you....it's scarey...
And I'll bet he also called her a couple of weeks before...more than a few times....I do not believe there is patient/patient privacy here and that she had a duty beyond what transpired.
I realize people hate psychiatrists but the assumption that the psychiatrist caused or exacerbated his mental illness seems less plausible than the psychiatrist simply not being successful in treating an existing mental illness.
When someone has a heart attack I don’t immediately assume it was caused by their cardiologist.