public. there wasn t any way the bomber would have known. i knew in the bottom of my heart we had a serial bomber. investigators say they re on the verge of concluding the three atlanta bombings are linked. whoever set off the bomb at the last summer olympic games is very likely from atlanta. and behind the bombing in an abortion clinic in january and a gay night club a month after that. we believe they are very likely to be linked together and the work of one individual or a small group of individuals. three bombings in the atlanta, georgia, area in under a year. with authorities no closer to naming a suspect, the media hands them a promising lead. a local cbs affiliate, reuters and nbc news receive identical letters that claim to be from the bomber. today investigators showed parts of a letter sent after the most recent bombing in february from a group that federal agents now believe may be responsible for the attacks.