USS Lucid (AM-458/MSO-458) is an Aggressive-class minesweeper acquired by the U.S. Navy for the task of removing naval mines that had been placed in the water to prevent the safe passage of ships. She was launched soon after the Korean War, sailed on five Western Pacific (Westpac) cruises and served four tours in Vietnam during the Vietnam War. Lucid was decommissioned at the end of 1970 and placed in mothballs after only 15 years of service, as the Vietnam War was winding down and there was no longer a need for a large fleet of minesweepers. She was purchased by civilians and served as a houseboat for ten years, before being sold again in 1986 and used as a warehouse by a scrap metal dealer on Bradford Island, in the Sacramento–San Joaquin River Delta. The scrap metal dealer was murdered