. >> the first person i called was molly depena. she is a very famous, continues to be a very famous pediatric pathologist. she had done a number of the original autopsies when she lived in philadelphia in the '50s and '60s and she'd also been the first person to ever let out there had been suspicions about the noes way back when. she recalled the medical examiner at the time, dr. joseph spellman, who is dead, that he believed that the noes had been responsible for their children's deaths. dr. de pena said that the diagnosis of crib death just wasn't possible in several children from the same family. >> you don't get two and three cases in a family. it's not part of the nature of that phenomenon. with our present knowledge now. the medical examiner would not call a second one in a family a sids. >> richard firstman co-wrote "death of innocence," the book that started stephen fried's quest. >> it doesn't run in families. there are no studies suggesting that it is genetic. when you put all the factors together and you have two, and ce