, that her mother had attempted to poison david shannon, that joan shannon and elizabeth shannond to kill david shannon and it actually was elizabeth that had shot him that night. >> a conspiracy? joan the brains, and elizabeth the brawn? given the tumultuous relationship between mother and daughter, who could have imagined they could agree on anything, let alone murder? but, said vera, that's the story elizabeth told her. and it implicated both her best friend and joan shannon in a homicide. >> the arrest warrants went out for both of them simultaneously. joan shannon was arrested actually befor elizabeth was arrested and before ezabeth gave any statement in the case. >> david shannon's family was in fayetteville for david's funeral. right there with joan when the cops came, saw what they did. joan had been practically paralyzed with grief, they said. and then arrested. >> they put cuffs on her. i imagine they read her her rights right then. but i don't know. it was another shock. >> joan herself was unshakeable in her insistence she did not do it. she had no part, she swore, in