The murder of Elaine O’Hara has had “profound and devastating consequences” for a number of people and will affect families for many years, the commander of the Garda investigation said yesterday.

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)

Bondage cuffs, chains, knives, a leather mask, rope, a ball gag, a blindfold, and the keys to Elaine O’Hara’s home were found in a lake.

A successful architect with an alleged deep-rooted sexual desire to stab women almost carried out the perfect murder but for an unusually hot summer which revealed breakthrough evidence thrown into a reservoir, it has been claimed.