Glasgow-born Michael McGurk was shot dead outside his waterside Sydney mansion in a gangland-style execution.Now the latest episode of “Sopranos on the Harbour”, as some have called it, is riveting Australians, following the arrest of McGurk’s former business associate, Ron Medich.A multi-millionaire property developer who had been in dispute with McGurk, Medich has been charged with masterminding the murder. A Sydney court heard that shortly after McGurk was shot at close range in his driveway in front of his nine-year-old son, Luc, a text message stating “Job done” was received by a friend of Medich’s, Lucky Gattellari. Medich was allegedly with him.The murder, in a well-heeled area, shone a light on a murky side of Sydney society. As well as being involved in property deals, McGurk, 57,...