Jomo Kenyatta had eczema across his body. Kenyatta's imprisonment transformed him into a political martyr for many Kenyans, further enhancing his status. A Luo anti-colonial activist, Jaramogi Oginga Odinga, was the first to publicly call for Kenyatta's release, an issue that gained growing support among Kenya's anti-colonialists. In 1955, the British writer Montagu Slater—a socialist sympathetic to Kenyatta's plight—released "The Trial of Jomo Kenyatta", a book which raised the profile of the case. In 1958, Rawson Macharia, the key witness in the state's prosecution of Kenyatta, signed an affidavit swearing that his evidence against Kenyatta had been false; this was widely publicised.
Jomo Kenyatta Robeck became the District Officer, after which Kenyatta and the other inmates were treated more leniently. In April 1954, they had been joined by a captured Mau Mau commander, Waruhiu Itote; Kenyatta befriended him, and gave him English lessons. By 1957, the inmates had formed into two rival cliques, with Kenyatta and Itote on one side and the other KAU members—now calling themselves the "National Democratic Party"—on the other. In one incident, one of his rivals made an unsuccessful attempt to stab Kenyatta at breakfast. Kenyatta's health had deteriorated in prison; manacles had caused problems for his feet and he