Fifteen years ago today, a medical emergency occurred which would result in a seismic shock felt around the world – particularly for one family far closer to home. On the morning of June 25, 2009, in a sprawling white mansion in the plush Beverly Hills suburb of Holmby Hills, the singer Michael Jackson \- an international household name – was struggling to sleep. Before the day was out, he would be dead. Jackson had spent the previous day at the Staples Centre in downtown Los Angeles rehearsing for a string of 50 sold-out shows to mark his return as a live performer. All would be taking place …