I have so much sympathy for this family .
As many know, my Dh survived serious mental health problems that led to suicide attempts. he is well now foryunately but even when he was so severly ill that the police were tracking him down after he phoned me from a service station to say he was going to kill himself then hung up, nobody offered any advice or idea of sectioning (which in retrospect was a great shame for him).
Mental illness is horendous. I wish I ahd links to some of the threads at that time, when DH would go off and I ahd no idea if would ahrm himself or just comoe back in an hour.
At the time I coudnt have left him with the kids (I guess I was fortunate in that I had nursed mental health anyhow, but also that his depression was progressive and as such I was aware of the risks). Had he ahrmed them though (which he never did) it wouldn't have been nastiness, it would have been pain and halplessness.
AS I said, I have nothing but sympathy and sadness for this family. Mental health is still such a taboo, and those who do suffer often don't ask for help because of their fears of how it will affect them job wise etc. Depression still gets seena s a skive or minor issue, for example. When actually what is needed is for people to relaise its just as bad as any other illness and just as indiscriminate in who it affects. And that Psychs aren't quacks who just section peolpe or diagnose on a whim- they're experienced professionals.
I dont know enough about this case to know whether itr was preventable or not, sounds not tbh. Howefver I think if only mental health was opened up a lot of poeple would be saved (from violence, abuse, personal suffering, shame or just caring pressures)