The wife of a Murdoch executive has been missing since the Sixties – will her body now be found?

When kidnappers broke into the home of Alick McKay in 1969, they thought they were abducting Rupert Murdoch’s wife Anna. Instead, they took Muriel McKay, the wife of one of Murdoch’s executives, who was never seen again. As police confirm a date to dig for her remains, David James Smith asks wil her family now finally find out the truth about this mysterious crime