Nick Cave is a bad-arse rock star.
For members of Generation X, he will always be the Coolest Man Alive, a musician whose personal mythology, and improbable survival, is tightly bound to his darkly beautiful music.
It is impossible to imagine Nick Cave doing anything ordinary. Even in our wildest imaginings there is no way that the Prince Of Darkness brushes his teeth, buys milk, or ever, ever, wears anything less than a sharp, black suit.
But Nick Cave is a husband. And he is a father.
He has four sons. Jethro, Luke, Earl and Arthur, who are twins.
And on Tuesday, Arthur died.