in 1999 as part of the Good Friday Agreement. Joe O'Connell, Eddie Butler, Hugh Doherty and Harry Duggan were members of IRA active service unit the Balcombe Street Gang, that terrorised London in the mid 1970s, killing six people, injuring many others and planning more attacks which were later foiled or never carried out. They were caught after they took a couple hostage in their flat in Marylebone while attempting to escape police pursuit and surrendered after six days. They were later each given whole life tariffs by the Home Secretary, however they were released as part of the Good Friday Agreement. During their trial they admitted to the Woolwich pub bombing and Guildford pub bombing, which others were convicted of and served time for. Harry Mackenney was convicted of four counts of murder in 1980 alongside his co-defendant Terry Pinfold who was convicted of procuring Harry Mackenney to murder business associate Terrence Eve after murderer John Childs turned evidence against the two. He was cleared in 2003 along with Terry Pinfold after spending over 20 years in prison when the court of appeal accepted that John Childs was a compulsive liar. He was originally sentenced to life with a recommended minimum term of 25 years by Mr Justice May, but was told in 1996 by the home secretary that he would never be released. Ronald William Barton was convicted of murdering his 14-year-old stepdaughter Keighley Barton in October 1986, in what was believed as an attempt on Barton's part to stop Keighley from testifying against him for child abuse and to gain revenge against her mother. He had several previous convictions for gross indecency against Keighley and sexual assault against other teenage girls, one of which he had been in prison for. After his conviction, his trial judge recommended a minimum sentence of 25 years; but the Lord Chief Justice then ruled that life must mean life, which the Home Secretary agreed with. The term was reset in 1997 to the original 25 years, which was reduced again to 23 years in 2006. IRA terrorists Thomas Quigley and Paul Kavanagh were both convicted of two murders in a bomb attack in 1981 by the Chelsea Barracks which also injured 39 people. They were both sentenced to 35 years in prison each in 1985 and were told in 1996 by the Home Secretary Michael Howard that they were to receive