Evidence that Arthur Leigh Allen was the zodiac killer
There is no concrete evidence linking Arthur Leigh Allen to being the Zodiac Killer. While he was considered a suspect by law enforcement and some investigators, there is not enough evidence to definitively prove that he was the perpetrator.
Some of the factors that led to Allen being considered a suspect by law enforcement and investigators include:
1. Allen had a criminal record and was known to have a violent streak, including allegations of child molestation.
2. He lived in the vicinity of several of the Zodiac killings.
3. Allen wore a Zodiac brand watch which could be linked to the Zodiac Killer's symbol.
4. Handwriting experts determined that Allen's handwriting was similar to the Zodiac Killer's letters.
However, it is important to note that none of this evidence definitively proves Allen's guilt, and many experts and investigators believe that there is not enough evidence to conclusively link him to the crimes. Allen also passed a polygraph test denying any involvement in the Zodiac killings.
As of now, the true identity of the Zodiac Killer remains unknown, and the case remains one of the most famous unsolved crimes in U.S. history.