full-fledged investigation would ensue. but, as she tells it, michael peterson spoke to the authorities that day, relating that elizabeth had a hereditary bleeding disorder. perhaps she'd had a stroke and fallen down the stairs the questions amybeth expected to be asked never were >> i wondered, you know, "why aren't they talking to people? why aren't they asking questions? no one did >> reporter: later that day, michael peterson phoned elizabeth ratliff's family in the u.s. with the dreadful news. margaret blair is elizabeth's sister >> he said "um margaret, there's been an accident liz fell down the stairs and died." "what are you saying?" i just totally went numb i mean, my sister. he's saying she died she's young. she's got two beautiful little children babies, really >> reporter: those baby girls? they are martha and margaret michael took custody of the girls after the accident in germany. and then michael, along with his