STUART, Fla. (CBS12) – A man is accused of selling cocaine, meth and fentanyl throughout the Treasure Coast, says the Martin County Sheriff’s Office (MCSO). Deputies say Fernandez Beaubrun, 32, was arrested after he tried to sell 1,110 grams of Fentanyl and 1,056 grams of cocaine to undercover law enforcement officers as part of their mission to remove fentanyl from their area. His arrest was a collaboration effort between the Martin County Sheriff’s Special Investigation Detectives and the Stuart Police Department.