A Turlock man has been convicted of committing sexual assault on two minors over the course of several years is expected to be sentenced to 12 years in prison. Elton Boyd Kelley, 64, was convicted of continuous sexual abuse of a child for crimes against John Doe 1, and oral copulation of a minor for crimes against John Doe 2. Kelley’s jury trial in Stanislaus County Superior Court had seen several days of testimony and evidence presented by the prosecution, when Kelley suddenly decided to change his plea from not guilty to no contest, according to the Stanislaus County District Attorney’s Office.