of elizabeth ratliff's coffin. >> it was so air tight, it was hard to use a krask to get the casket open. you could see part of elizabeth ratliff's face and hair. it was remarkable. >> they were stunned. the body was practically intact. >> her fingernail polish was still on. her dress was still perfectly in place. >> the m.e. took a closer look to the injuries to elizabeth's head. >> she was finding lacerations, deep gouges in the scalp. seven of them. >> seven? >> the lacerations were very sim laor to the ones that had been perpetrated on kathleen peterson in her findings she made a decision that ms. ratliff had been murdered. >> investigators thought they had hit pay dirt in death they thought kathleen peterson and elizabeth ratliff could have been twins. >> i'm thinking that my case is