General I.D Bisalla tied to the stake to be executed at the Kirikiri prison shooting range in 1976. He was known as Chief Coup planner after Dimka. General Bisalla was the Commissioner of Defence under the military administration of General Murtala Mohammed, the 4th Nigerian Head of State.
According to Wikipedia, General Bisalla was implicated by Colonel Dimka’s confessional statements after investigations into the abortive February 13, 1976 Dimka led coup which resulted in General Mohammed’s assassination.
Bisalla was controversially convicted of conspiracy and concealment of treason by the secret Special Military Tribunal; and as a result, Bisalla’s complicity is not clear (e.g., the Federal Military Government (FMG) asserted that Bisalla gave Dimka operational orders while Dimka, under interrogation, stated that another officer (Major Rabo) provide the operational orders).
Importantly, Dimka’s confessional was not corroborated and Dimka was known to have provided inconsistent testimonies and drank beer while being interrogated.
Pictured below is Col Dimka during his execution.