A single vehicle accident claimed the life of a 68 year old Calhoun County man Tuesday morning. Robert L. Layfield, of St. Matthews died after the vehicle he was driving struck a tree on Hwy 97 near Lonesome Pine Road, according to Kershaw County Coroner David West The cause of death was determined to be blunt force trauma to the chest, West said. West said Layfield was traveling south on Hwy 97 toward Camden when the accident occurred.