Police say two teenagers suffered severe head trauma in what investigators are calling a double homicide after their bodies were discovered behind a grocery store in the Atlanta suburb of Roswell.

Roswell police say a delivery driver made the discovery shortly before 6 a.m. Monday behind the Publix supermarket in the King Plaza shopping center.

Police identified the teenagers later Monday as 17-year-old Natalie Henderson of Roswell and 17-year-old Carter Davis of Woodstock. Both attended local high schools, where administrators plan to provide counselors and other resources for students.

The store is about 25 miles north of downtown Atlanta, on the northwest side of Roswell.

Police are working with the Georgia Bureau of Investigation and Sandy Springs police crime scene investigators to locate witnesses and other evidence.