Psychopaths adapt too well to incarceration. I want her to get death to limit her contact, movement, and involvement with others as much as possible. I've said this before but there are some extremely damaged souls in prison, for non-violent crimes, who would be extremely vulnerable to her. Not only would I worry she may hurt them or their families, but also that she'd be able to employ them as abuse proxies. I can totally see her befriending someone about to be released on a minor drug charge to terrorize the Alexanders...or even her own friends and family.
Hardly humanitarian of me, but I strongly believe she is one person who should never, ever have access to anyone again who doesn't have extensive experience dealing with a psychopath. The best we can get is to have her locked up for 23 hours a day though.