Lured back to Guinea by Sekou Toure's promises and a suicidal dose of naivete, Telli Diallo returned home, having completed two terms as Secretary general of the OAU. He became Justice Minister in 1972 and for approximately four years, it looked like he had made the right decision. Alas, in 1976, on Sekou Touré's order, he was arrested, detained, tortured and murdered in jail, in 1977, at Camp Boiro. Telli, and the following officials and military officers
suffered their ordeal and martyrdom for allegedly plotting against the regime in the so-called Fulbhe plot (Complot Peul). Like all victims of Sekou Toure's cyclical purges, known as « le Complot Permanent » or the Permanent Plot, Telli and his companions never received any kind of legal defense. In Stalinist-like trials, they were guilty, convicted and sentenced in advance. Worse, Sekou Toure went on to wage a libelous campaign against the entire ethnic Fulbhe community. As subsequent events show, such criminal attacks shattered the concept of Guinean nationhood to its core.