He was found guilty of 40 counts relating to indecent assault and sexual abuse of a minor between June 2014 and August 2015.
The court heard that his granddaughter was nine when the abuse began and over the time period, the offences took place 20 times in his bedroom.
Due to the nature of the charges and the young age of the girl, the court hearings took place behind closed doors.
Two of the bench members who had voted against finding him guilty...