Transcripts for CNN Forensic Files 20140629 09:16:45 archive.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from archive.org Daily Mail and Mail on Sunday newspapers.
greenwood at all. that s when they got very interested. of course, the possibility is that that s the perpetrator s dna. and investigators found even more evidence on helena s clothing. on her nylon stockings were grab marks. they decided to test that area for microscopic traces of blood and found some. the dna from helena s fingernail and stockings was compared to a blood sample from david frediani. and here are the numbers. the odds that the dna under helena s fingernail and stockings was someone other than david frediani s was one in 23 billion. he could hardly believe it when police arrested him. mr. frediani came out of his house and began walking to his car. that s when we approached him and placed him under arrest.
helena s husband, roger, was the first person police interviewed. whenever a woman is killed the prime suspect is generally the husband. and statistically, that bears out. most women who are killed are killed by someone well known to them, usually a romantic interest. and the husband is often the perpetrator. roger said he left home at 8:00 a.m. and was at work at the time of his wife s murder, around 9:00 a.m. records indicated helena had been on the telephone until 9:00 a.m., about the time a neighbor heard a commotion. one man who lived next door said about 9:00, when he was shaving, he thought he heard a human an abrupt human cry. but who knows. when police confirmed roger was at work, 40 minutes away at that time, he was eliminated as a suspect.
greenwood, you hear words like brilliant, quiet, honest and a hard worker. she earned a ph.d. in microbiology and was an executive in the biotech industry. she was not only an excellent scientist but she had marketing skills. and those two things often are not concurrent. helena was very forward thinking, especially looking at technology. but she also knew the power that technology by itself doesn t market a product. basically it s the human need. if there s a human need, there s a product. that s required. helena and her husband, roger, a landscape designer, lived in atherton, a quiet suburb outside san francisco. our story begins on a saturday
12-year-old girl outside an apartment in belmont, california. that suspect was david paul frediani. belmont was only seven miles from helena s home. the suspect, david paul frediani was a 42-year-old accountant with no prior arrests. since frediani resembled the man helena described, police compared his fingerprints to those found on helena s teapot. they matched. one of the things i asked him was he had denied even being involved in the initial sexual assault against mrs. greenwood. i remember asking him, you never assaulted this woman? he said no, i never did any of that. they then told him we have your fingerprints. at that point, according to the detective, he took a deep breath, let it out, began trembling. he could actually see his chest moving in and out and made a statement as to the effect of i was really drunk when i did those things. he then asked for a lawyer and