Article continues below advertisementA retired FBI special agent is convinced more than one person was involved in Nancy Guthrie's suspected kidnapping."Several days ago I spoke of this big find. You see, this is likely why geo fencing has perhaps been a dead end providing no usable leads. Walkie-talkies are the untraceable way to communicate," Jennifer Coffindaffer said in a X post on Monday, March 2."He and his cohorts, likely he did not work alone, may not look sophisticated, but they were," she added.