WASHINGTON (WPXI) – Pittsburgh FBI agents are searching for a man wanted in connection with a drug trafficking organization primarily operating in Washington, Allegheny and Fayette counties. Patrick Ellis, 47, of Washington, Pa., is being charged along with 21 others who have been indicted by a federal grand jury for trafficking significant quantities of cocaine, heroin and fentanyl. Seventeen of the defendants were arrested yesterday as part of “FBI Operation Skyfall,” an investigation that spanned seven months and involved federal wiretaps of ten phones. Four other defendants were already in custody and Ellis is the only one at-large. Those charged brought the drugs from New Jersey to Western Pennsylvania from April through October of this year, according to the FBI.