Nick Cave says the death of his two sons has made him “braver” and “a little less precious”. The musician, 66, lost his son Arthur, 15, in 2015, when the teenager fell from a cliff near the family home in Brighton, and he suffered further grief seven years later when his son Jethro, 31, died, and the star has told how he has been “shattered” by the tragic events, but feels “the worst has happened” in his life. He told the Big Issue magazine: “We change; sometimes multiple times, shattered by events. “This can fundamentally change the way that you perceive the world and the way you behave. “I t…