Possible. Anecdotal, I know a young man who clearly has mental problems and his parents, his friends, etc. have tried to help him. All fear that something could really go bad....in spite of all of their efforts to get help for him. The best they can do is get him psychiatry and medications and as much care and love as possible. And prayer without ceasing.
He acts better with psyche and meds but sometimes these people go off their meds thinking they are alright.
And that is when the nightmare really ratchets up...quickly. Very sad.
Incidentally (or not), he has a female cousin with the same type of behavior. She didn't kill anyone but she is a felon. Very, very, very sad all around for them and for their families and for their victims. (tears for situations such as this)
It (CO) is one of the 27 states whose involuntary treatment standard is based on a persons need for treatment rather than only the persons likelihood of being dangerous to self or others. “