Cormac O’Keeffe catalogues the painstaking policing and investigative work, as well as the chance discoveries, that contributed to the conviction of Graham Dwyer for the murder of Elaine O’Hara. (This article was originally published in March 2015)

AN Afghan teenager who lost his left leg and part of his right foot in a landmine explosion ran the race of his life yesterday despite being in excruciating pain caused by his ill-fitting prosthetic limb.