Patrick Wright talks to author Eoin McNamee, whose new book The Blue Tango blends fact and fiction to re-imagine a crime committed half a century ago and the extraordinary events that unfolded in its wake.The brutal murder in 1952 of Patricia Curren , daughter of a high court judge, shocked the Northern Irish community of White Abbey, in December 2000 the case made headlines again when lain Hay Gordon was finally acquitted of the murder 48 years after being convicted.