Between July 1979 and May 1981 the city of Atlanta, Georgia was gripped in fear. More than 20 children and adults went missing, and most were found murdered, during this time. The authorities would eventually arrest local music promoter, Wayne Williams, and charge him with two murders, though they believe that he may be responsible for 22 more he was never charged with.
Sources for this episode:
Wikipedia - Atlanta
Wikipedia - Atlanta murders of 1979-1981
FBI - Atlanta Child Murders
Wikipedia - Wayne Williams
11 Alive - Family of victims demand DNA testing be released in Atlanta Child Murders case
The Atlanta Child Murders on Investigation Discovery