acids from skin oils. then the letter was placed in a humidity chamber for several hours. the moisture in the chamber accelerated the chemical process eventually revealing an almost perfect thumbprint. this was photographed and then compared to prints in every fingerprint database available. they did databases for city employees, department of motor vehicles, postal workers, including police officers. and nothing. no hits. there had been no witnesses. none of the surviving victims could give a description. and the only forensic evidence was a single fingerprint. zodiac claimed that only the constellations orion and the seven sisters could stop him. new york police hoped to add themselves to the list.
Transcripts for CNN Forensic Files 20150301 05:07:30 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.
to prove their suspicions, police turned to forensic science. first seda was fingerprinted. his prints were then compared with the print left on the letter in central park. it was a match. next, handwriting experts compared the handwriting from the zodiac s letters to seda s known handwriting sample. the experts concluded they were written by the same hand. ballistics experts examined seda s collection of 15 zip guns. in his letters, zodiac claimed no one would catch him because his gun barrel didn t have the traditional lands and grooves inside for testing. but the zodiac apparently didn t know about forensic tool mark analysis. a tool mark is a characteristic left behind during the process of using a
and pendants. and with this discovery, they were able to decipher the zodiac s secret message. it said, this is the zodiac speaking, i am in control. who mastery be ready for more, yours truly. sir, we re going to need you on the runway later don t let a severe cold hold you back. get theraflu. it has the power of three medicines to take on your worst pain and fever, cough and nasal congestion. theraflu breaks you free from your toughest cold and flu symptoms. so you never miss a day. theraflu. serious power. i bring the gift of the name your price tool to help you find a price that fits your budget. uh-oh. the name your price tool. she s not to be trusted.
Transcripts for CNN Forensic Files 20140716 07:07:45 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.