evidence: Wanted Valdosta man shot and killed in Cobb County, Georgia Bureau of Investigation investigating [...] ATLANTA, Ga. (WALB) - The Georgia Bureau of Investigation (GBI) is investigating the shooting death of a Valdosta man in Cobb County. According to a release, on Saturday, Aug. 10, the Cobb County Police Department (CCPD) asked the GBI to conduct an independent investigation into an incident where a man was shot and killed.