hard to use the crank to get the casket to open. once it was raised you could see part of elizabeth ratliff's face and hair. it was remarkable. >> reporter: they were stunned. the body was practically intact. >> her fingernail polish was still on. her dress was still perfectly in place. >> reporter: the m.e. took a closer look at the injuries to elizabeth's head. she was finding lacerations, deep gouges in the scalp. seven of them. >> seven lacerations. you could -- black: it was amazing -- >> count them. >> it was uncanny. the lacerations were very similar to the ones that had been perpetrated upon kathleen peterson. and in her findings, she made a decision that ms. ratliff had been -- had been murdered. >> reporter: investigators thought they'd hit pay dirt. in death, they thought kathleen peterson and elizabeth ratliff could have been twins. >> i'm just thinking that, that my case is getting a whole lot better. >> reporter: