 Authorities are investigating the death of a woman at a pool in Grenada on Independence Day. Grenada County Coroner Douglas Yates identified the victim as 48-year-old Christy Hairston. The incident happened at the River Hills Apartments where Hairston and a group of friends were swimming. Just after 10.45 p.m., the victim was declared dead as she was lying face down in the water. Her cause of death is unknown at this time.