The Zodiac Killer Files

This work provides a concise synthesis of the key insights and analysis from The Zodiac Killer Files. It is an independent summary, not the original book, and has no affiliation with or endorsement from the original publication. Created for readers who want a clear, thought-provoking overview, it distills the central themes and ideas while preserving the depth and relevance of the work.

A documentary-style exploration of the Zodiac Killer case, compiling police reports, letters, ciphers, timelines and competing theories. The book reconstructs the murders, examines investigative missteps, and surveys the many suspects proposed over the decades, offering readers a deep dive into one of America's most enduring unsolved serial murder investigations.