@Lordyaswas,
I had been getting a "nose" for that - makes sense of the completely senseless -
"Things aren't looking so much like mechanical breakdown now, are they. I have been considering it possibly suicidal for a while. If so, I suppose it could be 'terror' related, but it could also be a mental health/anger situation. I'm just thinking out loud here."
"Aha, I hadn't read that yet. I was positing a mix of love story gone wrong, thus rage, with depression, but as Frank would say, it's just a guess."
What an incredibly violent and depressing act.