"The following summary account of the martyrs' journey to and burning at Namugongo is based mainly on the testimony of Denis Kamyuka and other eye witnesses as narrated in The African Holocaust, The Story of the Uganda Martyrs, by J.F. Faupel.
Denis Kamyuka, a Catholic also condemned to death with the martyrs, is a survivor and prime witness of the Namugongo holocaust, who only survived the fire at the last minute. He was mysteriously spared by some of the soldiers, who judged him incapable and too weak for the death penalty."
Article here: http://www.ugandamartyrsshrine.org.ug/details.php?id=8