U.S. District Judge John J. McConnell Jr. sentenced Juan Valdez, 51, of Milton, Massachusetts, to 20 years in prison for conspiring with his brothers, Claudio, 46, and Hector Valdez, 45, to arrange the shipment of multiple kilograms of heroin and cocaine to drug stash houses in Cranston and Woonsocket, according to a news release from U.S.