Because of the immense evidence against him, there were multiple investigations of Allen. The first interview was conducted at Allen’s work. He knew all about the pop culture references used by the Zodiac, and fit the description, but there was not enough evidence to accuse him, “They had his handwriting tested. California handwriting analysis even went as far as to say that Arthur’s writing was not that of the Zodiac” (Butterfield,2011). The second investigation was not able to convict Allen because there was no hard evidence. Speculations have arisen in parts of Allen’s investigation as to whether or not enough time was spent looking into the accuser. Years later, with new technology emerging, the case of the Zodiac was brought back to
