Ryan wrote several letters to various people from prison. The letter that included the 10 commandments and maintaining his innocence, is in the late Opas' estate. In  
the eleventh-hour, shortly prior to his execution, Ryan wrote letters on toilet paper inside his cell. The letters were folded up and addressed to his family members, Opas, and the Anti-Hanging Committee. Ryan asked Father Brosnan to give his letters to the appropriate persons. The contents varied from person to person and it is important to note that in each letter Ryan maintained his innocence and he thanked those who had supported him. In the documentary film The Last Man Hanged Ryan's letter to the Anti-Hanging Committee is read out loud. Ryan states; " I, Ronald Joseph Ryan, state most emphatically that I am innocent of murder". Ryan's wife Dorothy, also reads out loud part of the letter that Ryan wrote to her. http://australianscreen.com.au/titles/last-man-hanged/