A 55-year-old Marysville man, who is a registered sex offender, was sentenced to three years in prison Wednesday for possession of images of child sexual abuse. Robert Anthony Fiore, a registered sex offender, came to the attention of law enforcement after the National Center for Missing and Exploited Children received a cybertip report from Dropbox that child sexual abuse material was uploaded to his account, the U.S. Department of Justice (DOJ…