Cranston police officer found guilty of assault, won't serve jail time WARWICK — A Cranston police officer faced a year of probation on Thursday after a District Court magistrate found that he had assaulted an unarmed prisoner in a secure area of the Cranston Police Department. Officer Andrew Leonard missed various opportunities to de-escalate the situation and opted for unreasonable force, according to Magistrate Judge J. Patrick O'Neill, who gave his verdict immediately after closing arguments Thursday afternoon. "It's a sad case all around," O'Neill said. O'Neill rejected Leonard's attempts to justify a series of punches and a knee-shot that he delivered to 26-year-old Gian Mattiello on March 5, 2020. The assault by the police station's surveillance cameras.