My deepest sympathies Harris. I can't imagine what you've been going through... I've not yet lost anyone so dear to me.
That you thought of having your sister committed, but didn't, does strike a chord with me, though. My younger brother, who still lives with our parents, has been addicted to prescription narcotics for quite some time now. My parents have flip-flopped many times over using the Baker act to get him help, but time and time again, have allowed themselves to be convinced that my brother's addiction is either under control, or that he will get himself the help he needs. I, being slightly more outside of the situation, can see all of the deceptions he employs to keep living the life he's living. As I understand it, it takes two people to have a person committed, which seems to leave me with my hands tied, hoping that my folks will open their eyes before it's very much too late.