From staff reportsDivers recovered the body of an 87-year-old Oxnard man at Lake Casitas late Monday afternoon after he was reported missing.Authorities said the man's pickup truck, a boat trailer, and an empty boat anchored in the lake, were found shortly after 1:30 p.m. at Lake Casitas.A Ventura County sheriff's dive team was sent to the lake and his body was recovered shortly before 6 p.m.The incident, including the cause of death, remained under investigation Monday night.