If any person, close relative or otherwise, threatens suicide - let 'em do
it. I have an ex wife who used to threaten me with her suicide quite
often. It's just an attention/sympathy control attempt. I eventually
just told her to "go ahead" each time and eventually divorced.
It's an attempt to control others.
I do not understand why the authorities lock these type people up instead of
letting them just be done with it.