There might be some stipulations for overzealous prosecution, (malicious prosecution?) or something like that.
Justice is not perfect. There are countless people in jail in error (through no malfeasance). People identify the wrong person, someone was somewhere at the wrong time and circumstance is too strong, etc., etc. It can aim for perfection, but it's hardly that. Of course that does not preclude the aggrieved from being angry and disillusioned. Life is full of these weird uncertainties.
It's not as though the girlfriends or boyfriends of people who become distraught and commit suicide because of a breakup would be charged with manslaughter. I've never heard of that being a successful case.
You are missing the point. She can always be charged with manslaughter and take her max of 10 years in prison, or she can plea bargain down to 1 month.
It's not about what you can prove, but what you can extort using trumped up charges to force a plea.
(I'm not being serious, but that was the OP's point i believe)
Yes, you elucidated my point quite well.
It doesn't matter whether or not manslaughter applies: She would have to either defend herself (let's freeze her assets, cuz they're ill-gotten gains, so to pay the victims! (which is what she has done)) or take the plea.