Member of the British Army's Irish Guards who became the first Irish-born person to be killed in the Iraq war. His funeral was the first funeral held in the Republic of Ireland to feature uniformed British military personnel since 1922.
He grew up in the Irish suburb of Ballyfermot and joined the Irish Guards in 1997 at age 23.
He was interviewed about his experiences in the British Army for the Radio Telefis Eireann documentary series True Lives just five months before his death.
He was the oldest of five siblings.
He and Native American soldier Lori Piestewa were both killed in the Iraq War in 2003.