An autopsy under way today on the body of a 74-year-old Port Charlotte man that was found in a grave at his house. Charlotte County deputies have arrested 47-year-old Juan Reyes of Port Charlotte in the death of the man, whose identity has not yet been released. Investigators say Reyes is the former boyfriend of a woman who was the victim’s caregiver. They say the couple live in the house with the man. Reyes is reportedly a registered sex offender who had lived in the house for about six months.