OSBI agents have arrested an accomplice in a homicide that occurred in Johnston County last month. Tanner Douglas Jenkinson (d.o.b. 11-21-1992) was arrested at the Johnston County Sheriff’s Department Tuesday afternoon after agents interviewed him. Jenkinson was then booked into the county jail on a complaint of murder in the first degree. Jenkinson drove the shooting suspect to 4505 S. Preston Road, Tishomingo, the night of January 16. The shooting suspect killed Marcus Cole Holt and kidnapped Holt’s girlfriend and her two young children. The shooting suspect then took the kidnapping victims to Ardmore where they were eventually released. The shooting suspect was killed by law enforcement.