Australia’s worst air crash in 40 years claimed 15 lives at Lockhart River on Cape York 7th May 2005. A memorial service in Cairns saw huge outpourings of grief as families came to terms with the tragedy. Amongst the victims was young police officer Sally Urquhart . Her fiance Trad Thornton – and family – mother Elizabeth, dad Shane, brother Brendan and sister Natalie – are inconsolable.