After the Zodiac is going quiet, Graysmith is extra obsessed than ever. He neglects his circle of relatives and soon-to-be 2d ex-wife in desire of discovering Z’s “one mistake.” Toschi is operating different homicide circumstances — it is not like Zodiac was once the one sport on the town for the final couple a long time. Avery, ever extra paranoid after Zodiac focused him with a private “you might be doomed” Halloween card, has began writing for a tabloid rag and ingesting closely. Graysmith re-investigates on his personal and will get into sizzling water chasing up a lead with identical handwriting to Z.
After Graysmith earns his Live on A Creepy Basement with a Imaginable Serial Killer badge, he unearths Z’s “mistake” finally. Graysmith chats with Melvin Belli’s (Brian Cox) housekeeper concerning the threatening calls Belli won on December 18, when he was once out of the city. The voice advised the housekeeper he was once calling on his birthday. Graysmith unearths a at hand replica of Allen’s driving force’s license, and notes his birthday — December 18. Graysmith races to provide his bouquet of circumstantial proof to Toschi, however, whilst Toschi turns out to agree, Graysmith has not anything to end up his case in a court docket of legislation.
Nonetheless, Graysmith is going to see Leigh for himself at an Ace {Hardware}, and, whilst not anything is alleged, a second of popularity turns out to go between the 2 males. Later, Graysmith writes his e book, and it is a spoil good fortune. The case is reopened, and Mike Mageau, all grown up, ID’s Allen — who dies of a middle assault ahead of any fees can also be pressed. If it were not for this unstated second of figuring out, Graysmith may now not have written his e book, the case would possibly not have got new consideration, and Mageau most certainly would not have been contacted to ID Allen.