Ignatius Kutu Acheampong was a military Head of State of Ghana who ruled from 13 January 1972 to 5 July 1978, when he was deposed in a palace coup. He was later executed by firing squad. Kenya's renowned photojournalist Mohamed Amin, also known as 'Six Camera Mo' captured some of Africa's defining moments and photographed almost every African leader in the 20th century.