 Although Shevardnadze managed to comply with popular opinion without being punished or reprimanded by the centre, probably due to the success of his economic policy in Georgia, he still sought to neutralise the dissident movement in order to retain his reputation as a successful and loyal Communist leader.Under increasing pressure from the authorities, the national movement suffered a setback in April 1979, when the prominent Georgian dissident, Zviad Gamsakhurdia, was pardoned after having repented his views, admitting his "errors of judgment" on nationwide television.As Gamsakhurdia's close associate, Merab Kostava, refused to surrender, he remained an untainted leader of the Georgian dissident movement until his release in 1987 and his mysterious death in a car crash in 1989.