Family members and friends of Carter J. Davis grieve during a vigil at River Ridge High in Woodstock on Tuesday, August 2, 2016. He and Natalie Anne Henderson were each shot once in the head, the Fulton County Medical Examiner's Officer said late Tuesday. A delivery driver spotted the Roswell teens' bodies early Aug. 1, 2016, behind the Publix on Woodstock Road. HYOSUB SHIN / HSHIN@AJC.COM