Missing in Ireland - ‘We always hoped we would get the right call’

It is 20 years this month since 26-year-old American student Annie McCarrick disappeared in the Dublin mountains, apparently the victim of abduction and murder.

Despite intensive searches and years of investigations by gardaí, her fate has never been discovered.

While the loss has been hugely distressing for her family in America, a sense of unfinished business is also still felt keenly by former Garda Assistant Commissioner Martin Donnellan, the man who led the investigation into her disappearance.