The second Nigeria military leader to be assassinated in military coup d'etat was

The second Nigerian military leader to be assassinated in a military coup d'état was General Murtala Mohammed. He came into power on July 30, 1975, after leading a coup that ousted General Yakubu Gowon from power. During his brief tenure as Head of State, General Mohammed instituted a number of reforms aimed at tackling corruption and improving the economy. However, on February 13, 1976, he was assassinated in a failed coup attempt led by Lieutenant Colonel Buka Suka Dimka. The other options listed were also involved in military coups and attempted coups in Nigeria, but they were not the second military leader to be assassinated.