Marietta Police found Carruthers laying unconscious in a grassy area near the Cobb Community Transport Terminal parking lot at 800 South Marietta Parkway on Saturday, Sept. 28 with a single knife wound to the chest. He later died at WellStar Kennestone Hospital.
Police have arrested and charged Demetres Plasencio, 18, Jordan Billinsly, 18, and young man, 16, with robbery.
Another teenager, 19-year-old Samario Koger, has been charged with robbery, but remains at-large.
Anyone with information on the whereabouts of Koger is asked to call 911 or the Marietta Police Anonymous Tip Line at (770) 794-6990.
Two juveniles were previously charged with murder following the killing of Carruthers, of Marietta. Josue Chapa, 14, and Brandon Betancourt, 16, both of Marietta, were also arrested and charged as adults.
— Nikki Wiley