Selected Audio Files & Interviews

Selected Radio/Podcast Interviews:

  • Michael Butterfield on The KEVIN SMITH SHOW excerpt: FBI Profilers
  • COAST TO COAST AM with George Noury, featuring writer Michael Butterfield and Zodiac researcher Ed Neil, with other highlights.
  • ZODIAC: A to Z / Robert Graysmith’s Crooked Compass – In this segment of the audio webcast program ZODIAC: A to Z, writer Michael Butterfield and Zodiac researcher Ed Neil explain the geographic errors contained in the books Zodiac and Zodiac Unmasked. Recorded in 2007, this 7-part webcast examines the author’s many errors concerning the location of the crime scene on Lake Herman Road, the crime scene at Blue Rock Springs Park, the location of the pay phone used by the Zodiac to call the Vallejo Police Department, the crime scene at Lake Berryessa, the location of the Zodiac sighting on the night of his last known murder in San Francisco, the author’s infamous “hidden road” in Vallejo, and his claims regarding the Zodiac’s Mt. Diablo map. This audio webcast is accompanied by illustrations, maps, aerial photographs, and excerpts from Robert Graysmith’s books.