SEBASTIAN INLET — Authorities have identified a body found floating offshore three miles south of the Sebastian Inlet as 80-year-old Dell Hebert Melbourne.Hebert had been reported missing by his wife Tuesday morning when he did not return home after heading to the Sebastian Inlet Monday night to go shrimping. Florida Fish and Wildlife Conservation Commission spokesman Lenny Salberg said his boat was found northeast of the A1A bridge with a damaged propeller and the cowling to the engine up, indicating he may have had engine trouble.Salberg said the investigation into the cause of death is continuing.This story will be updated when more information becomes available.