Complex sentence: His most controversial case was that of James Hanratty, hanged on 4 April 1962 at Bedford prison for the "A6 murder" case, although efforts to clear Hanratty's name continued until 2001 when DNA testing matched Hanratty to the crime scene.
Split into simpler sentences: His most controversial case was that of James Hanratty, hanged on 4 April 1962 at Bedford prison for the "A6 murder" case. Efforts to clear Hanratty's name continued until 2001, when DNA testing matched Hanratty to the crime scene.