Well said mixture. My day job is being involved with recently bereaved people and that includes by suicide. I have been doing this for a long time.
Suicide is VERY difficult to understand, almost impossible to anticipate and the determined individual will always succeeed. Yes, what has happened is ghastly beyond words, but the brain of the o/p might develop a haemorrhage as they are driving their car at 70mph on the motorway and take out a whole coachload of people and entire families. That is the way that mankind has chosen to live in the 'civilised' western world.