WILKINSTOWN (IRELAND) - In remote bogland in Ireland, investigators search the ground with radar and a cadaver dog for a victim of the IRA murdered and secretly buried in 1972. Geoff Knupfer, the lead forensic scientist and investigator for the Independent Commission for the Location of Victims Remains, holds a picture of Joe Lynskey, one of the "Disappeared" at Coghalstown in Ireland. December 1, 2014. Many of the people taking part in the search are former police officers like Knupfer, a retired detective who worked in the 1980s on the high-profile Moors Murders child killings in England