This episode originally aired September 9, 2019. For six years, a serial killer prowled the streets of New York City. He wrote letters to police and "The New York Post," indicating he would kill twelve people, one for each astrological sign. Forensic astronomy, handwriting analysis, and DNA extracted from the flap of an envelope gave investigators a profile of the killer, and a stroke of luck enabled them to find him.<hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>

Forensic Files is a pioneer in the field of fact-based, high-tech, dramatic storytelling. This series of television programs delves into the world of forensic science, profiling intriguing crimes, accidents, and outbreaks of disease from around the world. Hosted on Acast. See acast.com/privacy for more information.