O'Connor was the senior presiding judge in many Mau Mau trials , the most notable being that of Dedan Kimathi , whom O'Connor sentenced to death in 1957 .
During his time as Chief Justice of Kenya , the Mau Mau Uprising was at its peak .
O'Connor was the senior presiding judge in many Mau Mau Uprising   trials , the most notable being that of Dedan Kimathi , whom O'Connor sentenced to death in 1957 .
During his time as Chief Justice of Kenya , the Mau Mau Uprising was at its peak .