87 minutes | Jul 13, 2020

14 | The Zodiac Killer Part 2

Last time, in the first part of this double episode, I told the story of the disguise-wearing, letter-writing serial killer operating in California’s Bay Area in 1968 and 69, who christened himself Zodiac. His choice of victim changed, as did his MO, so how do you catch a killer whose only motive is achieving infamy and mocking the police? Join me for Part 2, where we’ll analyse the killer’s behaviour and review some of the popular suspects and theories, and we’ll hear from Zodiac expert Michael Butterfield. It’s a case that’s now over 50 years old, so will the killer ever be named?Thanks for listening! Here’s how you can get in touch with comments and suggestions:Twitter: @PrashsMurderMap Email: prashsmurdermap@gmail.comCredits:Special thanks to Zodiac writer and consultant Michael Butterfield  http://zodiackillerfacts.com/ who kindly took time out of his busy schedule to contribute to the making of this episode. Please check out his podcast Zodiac A To Z https://zodiacatoz.podbean.com/Starring the amazing voice acting talents of Ben (The Zodiac, Brian Hartnell and police officer), Mariah (Nancy Slover, Kirsty Martire and disclaimer), Steven (Mike Mageau) and Alan Smith (Rick Marshall, Richard Gaikowski)Sources:Arntfield, Michael, May 2018, “The preferred jobs of serial killers and psychopaths”, The Conversation, https://theconversation.com/the-preferred-jobs-of-serial-killers-and-psychopaths-96173Bauer, Craig P, 2018, “The Zodiac Ciphers: What We Know”, History.com https://www.history.com/news/the-zodiac-ciphers-what-we-knowButterfield, Michael,Zodiac Killer Facts website http://www.zodiackillerfacts.com/case.htmCalhoun, Bob, 2018, “Yesterday’s Crimes: The Zodiac Killer’s First Known Victims Died 50 Years Ago”, SF Weekly, https://www.sfweekly.com/news/yesterdays-crimes-news/yesterdays-crimes-the-zodiac-killers-first-known-victim-died-50-years-ago/Gaikowski/Zodiac Connection/Timeline, TapaTalk forum, https://www.tapatalk.com/groups/zodiackillerfr/gaikowski-zodiac-connection-timeline-t2742.htmlGraysmith, Robert, 2007, “Zodiac: The Shocking True Story of America’s Most Elusive Serial Killer”, Titan BooksGrinell, Richard, Zodiac Ciphers website https://www.zodiacciphers.com/Heidelberg, April 2018, “Can estimates from forensic handwriting experts be trusted in court?”, Springer, https://www.springer.com/gp/about-springer/media/research-news/all-english-research-news/can-estimates-from-forensic-handwriting-experts-be-trusted-in-court-/15635428Martire, K, Growns, B & Navarro, D, April 2018, “What do the experts know? Calibration, precision and the wisdom of crowds among forensic handwriting experts,” Psychonomic Bulletin & Review, 25, 2346-2355https://link.springer.com/article/10.3758/s13423-018-1448-3Officer Down Memorial Page for Eric A Zelms, https://www.odmp.org/officer/14665-officer-eric-a-zelmsSchillemat, Brandon, 2012, “Has the code of the Zodiac Killer been cracked?”, Neighbor News, Patch, https://patch.com/california/fostercity/has-the-code-of-the-zodiac-killer-been-cracked“Understanding the Birthday Paradox”, BetterExplained.comhttps://betterexplained.com/articles/understanding-the-birthday-paradox/Voigt, Tom, Zodiac Killer website http://www.zodiackiller.com/index2.htmlVoigt, Tom, YouTube Channel, “Handwriting Expert Sherwood Morrill discusses The Zodiac Killer”, https://www.youtube.com/watch?v=tAPtxcvRQkoWas Donald Gene Harden the Zodiac Killer Facebook Group https://www.facebook.com/pg/Was-Donald-Gene-Harden-the-Zodiac-Killer-189393988058502/posts/Wayback Machine Web Archive, Coroner’s Report of Paul Lee Stine,https://web.archive.org/web/20070327182656/http://www.thezodiacmansonconnection.com/autop_stine_1.htmlWayback Machine Web Archive, New Realities Video, Richard Gaikowski’s websitehttps://web.archive.org/web/20010411015131/http:/www.slip.net/~richgaik/index.htmlZodiac film, 2007 https://www.imdb.com/title/tt0443706/Zodiac Killer Fandom page, “Ross Sullivan”, https://zodiackiller.fandom.com/wiki/Ross_SullivanZodiacKillerIdentified YouTube channel https://www.youtube.com/user/Zeppelin196818/videosZodiacKillerVideos YouTube channel, “Lake Herman Road – The Funeral of David Faraday”https://www.youtube.com/watch?v=nwPMg8XfOckZodiac Killer Wiki https://zodiackiller.fandom.com/wiki/Zodiac_Killer_WikiZodiologists.com, 2009, “The Riverside Desktop Poem,” http://www.zodiologists.com/riverside_desktop_poem_introduction.html
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