Question: Who did Edward Fitzgerald represent in the case of the manslaughter of Martin Brown and Brian Howe?

Context paragraphs:
Edward Fitzgerald: Edward Fitzgerald or Edward FitzGerald may refer to:

Edward FitzGerald (poet): Edward FitzGerald (31 March 1809 – 14 June 1883) was an English poet and writer, best known as the poet of the first and most famous English translation of "The Rubaiyat of Omar Khayyam".  The writing of his name as both FitzGerald and Fitzgerald is seen.  The use here of FitzGerald conforms with that of his own publications, anthologies such as Quiller-Couch's "Oxford Book of English Verse", and most reference books up until about the 1960s.

James Graham Brown: James Graham Brown (August 18, 1881 — March 20, 1969) was an American businessman and real estate developer best known as the builder of the Brown Hotel in Louisville, Kentucky and for his philanthropy.  Born in Madison, Indiana, he moved to Louisville in 1903 and founded, with his brother and father, the W.P. Brown and Sons Lumber Company.  Brown also began developing commercial buildings, concentrated around Downtown Louisville, including the Brown Hotel, Brown Theater, Brown Garage, Martin Brown Building, Kentucky Towers and the Commonwealth Building.

George FitzGerald, 16th Earl of Kildare: George FitzGerald, 16th Earl of Kildare (23 January 1612 – 29 May 1660) was known as the "Fairy Earl", apparently for no other reason than that his portrait, which is extant, was painted on a small scale."  He was the son of Thomas FitzGerald and Frances Randolph and grandson of Edward FitzGerald (born 1502, brother of Gerald FitzGerald, 14th Earl of Kildare) and Agnes Leigh.

Mary Bell: Mary Flora Bell (born 26 May 1957) is an English woman who, in 1968, aged 10–11, strangled to death two younger boys in Scotswood, an inner-city suburb of Newcastle upon Tyne.  She was convicted in December 1968 of the manslaughter of Martin Brown (aged 4) and Brian Howe (aged 3).

Lady Edward FitzGerald: Stéphanie Caroline Anne Syms, Lady Edward FitzGerald (  1773 9 November 1831) was the wife of Lord Edward FitzGerald, the radical revolutionary and leading United Irishman, and was herself an enthusiastic supporter of Irish independence, scarcely less celebrated at the time than Lord Edward himself.

Baron Rayleigh: Baron Rayleigh, of Terling Place in the County of Essex, is a title in the Peerage of the United Kingdom.  It was created in 1821 for Lady Charlotte Strutt, wife of Colonel Joseph Strutt, Member of Parliament for Maldon and a member of an Essex family that had made its fortune in the milling business.  Joseph Strutt had earlier declined the offer of a peerage, and instead proposed that the honour be given to his wife.  Lady Rayleigh was the daughter of James FitzGerald, 1st Duke of Leinster, and his wife Lady Emily Lennox, the second of the famous Lennox sisters.  Her elder brother was Charles FitzGerald, 1st Baron Lecale and her younger brother was Lord Edward FitzGerald.  Lady Rayleigh's grandson, the third Baron, was a noted physicist and Nobel Prize recipient.  The latter's son, the fourth Baron, was also a well-known physicist.  s of 2014 the title is held by the fourth Baron's grandson, the sixth Baron, who succeeded his uncle in 1988.  Other notable members of the Strutt family include Strutt & Parker founder Edward Gerald Strutt, a son of the second Baron, and the former's grandson Sir Nigel Strutt.

Edward Fitzgerald (barrister): Edward Hamilton Fitzgerald CBE QC is an English barrister who specialises in criminal law, public law, and international human rights law.  His work against the death penalty has led him to represent despised criminals such as: Myra Hindley, a perpetrator in the Moors murders; Mary Bell, a child killer; Maxine Carr; Jon Venables, one of James Bulger's killers; various IRA prisoners; and Abu Hamza, the controversial Muslim cleric.  Fitzgerald is currently the joint head of Doughty Street Chambers along with Geoffrey Robertson QC.  Fitzgerald has been called to the Bar in a number of jurisdictions including Belize, Grenada and St Vincent, and has been granted rights of audience to appear in cases in Hong Kong, Trinidad and Tobago, St Lucia, Bahamas, and the British Virgin Islands.  He is also a trustee and patron of a number of charities including The Death Penalty Project and The Longford Trust.

Edward FitzGerald, 7th Duke of Leinster: Edward FitzGerald, 7th Duke of Leinster, etc. (6 May 1892 – 8 March 1976), known as Lord Edward FitzGerald before 1922, was Ireland's Premier Peer of the Realm.

Horrie Garrick: Horace James "Horrie" Garrick (26 August 1918 – 6 April 1982) was an Australian politician.  Born in Melbourne, he attended state schools and then Swinburne Technical College before becoming a mechanical engineer.  Having sat on Collingwood City Council, he was Mayor from 1960 to 1961 and from 1968 to 1969.  In 1969, he was elected to the Australian House of Representatives as the Labor member for Batman, succeeding the retiring Labor turned independent MP Sam Benson.  He held the seat until his retirement in 1977, having lost ALP preselection to Brian Howe during 1976.  Garrick died in 1982.

Supporting paragraphs: Edward Fitzgerald (barrister) Mary Bell
Answer: Mary Bell