As far as I know Toschi is still convinced Zodiac was ALA.
So far as I know, no investigator on the case believes it was anyone other than Allen. There was one investigator after the fact who believed he proved it was another person but he never actually worked the case as an active investigator and didn't have access to the police files.
One thing that is often missed was that the jurisdiction of the cases overlapped and there was never a coordinated effort to nail Zodiac. The right hand didn't know what the left hand was doing. And there is reason to believe that Zodiac knew how to game the system to gum up the works. By all accounts Allen had an extraordinarily high IQ but a complete failure in life and never had any success with women. He despised his own mother although he lived in her house. He was a dysfunctional human being by all accounts and a convicted sexual predator. And he was the only one who ever directly communicated with Toschi after release from prison. He couldn't leave it alone but at the end of his life pleaded not to be identified as Zodiac although he never did anything to disabuse the investigators he wasn't Zodiac when it would have mattered.
So far as I know, there is not a single piece of evidence, real or circumstantial, that would exonerate Allen. Although many would believe that he wasn't and was somehow exonerated through the stamp DNA, which I regard as laughable, a cottage industry has sprung up with a new suspect every other day. These "cultists" as one former police officer put it to me have no other life so they keep at it. This will likely never end no matter how long it takes. Zodiac will go into the crime annals as another Jack the Ripper, Judge Crater or Jimmy Hoffa crime.
For those who have the time, there is literally a mountain of on-line information available to the public involving police records and the like. Also the "Director's Cut" of Zodiac has a wealth of new information that helps to further cement the overwhelming circumstantial case against Allen. While it can't be proven to an absolute certainty, I believe if such a case were presented to a jury, the case would be decided on the base beyond a "reasonable doubt." In my view there is no "reasonable doubt" as to Allen's guilt. He was in my opinion Zodiac. Of course, I could be wrong, but I don't think so.
Had he lived and gone to trial, I believe he would ultimately have cut a deal and admitted to being Zodiac which never happened due to his early death from diabetes and heart disease. He was nearly blind and on disability at the end of his life and dropped over dead at only age 58. He was a failed human being both to himself and to his probable victims. He was gifted with a high IQ but never put that to good use which is a shame. He could have amounted to something but squandered it for reasons that defy understanding. We will never know. He never lived to tell us.
