The Southaven man arrested at a home where police say they found a body buried in a shallow grave – has now been arrested for murder. On Monday, polcie also identified the victim as 80 year-old Grady Deboard. The body was disocvered buried on the property on Burton Lane on July 9th. Polcie say Deboard had previously lived at the home. Meanwhile, 38 year-old Michael Shane Guidry, who also lived there, is now being held for murder.