CNN reported early in the investigation that the FBI considered Richardson to have serious credibility issues when they began interviewing her . Shannon Richardson , 35 , initially told FBI her husband sent drug - tainted letters . But she failed polygraph , and husband said she wanted to end it , FBI says . Before her arrest , she allegedly admits to sending letters , but her husband forced her . Her husband filed for divorce ; she 's also pregnant , divorce lawsuit says .
Shannon Richardson , 35 , initially told FBI her husband sent drug - tainted letters . But she failed polygraph , and husband said she wanted to end it , FBI says . Before her arrest , she allegedly admits to sending letters , but her husband forced her . Her husband filed for divorce ; she 's also pregnant , divorce lawsuit says .