Freed from prison in 1990, he became president four years later, and left office after serving only one term, a rare gesture in African politics. 
Aliachiwa huru kutoka gerezani mwaka 1990, na kuwa rais miaka minne baadae, na kuachia madaraka baada ya kutumikia kwa kipindi kimoja tu, kitendo adimu kufanywa na wenye madaraka barani Afrika.