TUPELO, Miss. (AP) — Charges of sending ricin-laced letters to President Barack Obama and others were dropped Tuesday against an Elvis impersonator from Mississippi who has said since his arrest last week that he had nothing to do with the case. Meanwhile, in Tupelo, numerous law enforcement officers converged on the home of another Mississippi man, Everett Dutschke, including some in hazmat suits. No charges have been filed against him and he hasn't been arrested.