in february 1981, a troublesome tip reached the police. a man involved in the ku klux klan could be atlanta's serial killer. >> atlanta was about to explode, and here was information potentially that the klan could have been doing this. >> bob ingram with the gbi, georgia's bureau of investigation, got the case. >> it was an entire family of brothers that were involved in the klan that were the focus of this particular intelligence information. >> an informant said one brother had threatened lubie geter, the child found dead only weeks before. the klan associate lived here on a dead-end street in the railroad town of mountain view on the outskirts of atlanta. >> we're tapping telephones. we heard a lot of rhetoric.