[1] In 1959 he and Prime Nyongabo founded the Union Culturelle de la Jeunesse Africaine du Burundi (UCJAB), a youth nationalist organisation.
[7] Not personally close to Micombero, he and Albert Shibura pushed the regime's policies leftward[1] and advanced an anti-clerical view.
[7] He subsequently helped Minister of Foreign Affairs Prime Niyongabo arrange for a North Korean delegation to visit Burundi over the president's opposition on 5 March.
[1][7] Angered by what he saw as leftist subversion, on 13 March Micombero purged his cabinet, and Bimazubute was demoted to Director General of the Ministry of Information.
[7] Late in the night on 5 May at a bar in Bujumbura a large fight broke out among members of the Jeunesses Révolutionnaires Rwagasore, with one side showing fidelity to Micombero and the other holding more ideological left leanings.
While there he cultivated good relations with President Mobutu Sese Seko and was impressed with his policy of Authenticité, which promoted indigenous language and culture.
Inspired by Authenticité, he adopted several reforms in the Burundian education system, including the institution of Kirundi as the language of instruction in primary schools.
[10] He also ordered the consolidation of schools following the Ikiza, an event in which the army massacred thousands of educated Hutus, driving many students and teachers out of the country.
[14] During the 1993 Burundian coup d'état attempt launched by Tutsi army officers early in the morning on 21 October, Bimazubute was collected by soldiers from his residence.
The putschists soon thereafter killed him[16] and buried him and the other victims of their coup attempt in a mass grave in the centre of Camp Muha.
After several hours the soldiers realised that international opinion would strongly disapprove of such treatment of the bodies, so they exhumed them and allowed family members to collect them.