7. Olusegun Obasanjo
In 1995, Obasanjo an outspoken critic of the Abacha regime was arrested on trumped up charges of plotting a coup but was released after the sudden death of Abacha in June 1998.
After his release, Olusegun Obasanjo contested for and won the presidential elections held in 1999, under the Peoples Democratic Party and also won a second term in 2003.