In November 2023, I transmitted the genetic profile of Joseph Bevilacqua (1935-2022) to the police departments in charge of the Zodiac Killer case as well as his other possible crimes. I was authorized to do so for a defense investigation in my defamation trial.
Edit: here the comment on my conviction by a first instance judge in 2024
I also sent the profile to the FBI, together with the results of my journalistic investigation and the solutions to the ciphers of the serial killer considered unsolved so far: anagram of the Z408, Mount Diablo code, Zodiac’s name including the solution of the Halloween riddle.
Bevilacqua, former ABMC superintendent at the Florence American Cemetery and witness at the Pacciani trial, was reported to the police by me for and admission of guilt on the Zodiac and Monster of Florence crimes in 2018.
His DNA has never before been compared with the samples collected in the investigation on Zodiac nor entered for control in the vast FBI database.
Bevilacqua’s DNA was collected in 2020 by the Siena DA’s Office (not Florence) on the initiative of the deputy DA Nicola Marini, with the assistance of the officers of the local judicial police section Carlo Brandini, Nicola Leonardi and colleagues. In September 2018, they had interviewed me after I reported a possible connection between Bevilacqua and the murder of taxi driver Alessandra Vanni in Castellina in Chianti in ’97.
At the time, the DNA comparison was negative.
The profile was subsequently inserted into the Ministry of the Interior database and shared with the Florence DA’s Office. There were no traces of DNA attributable to the so called “Monster”, and in this case too the comparison had a negative result.
In 2023, I was authorized to have Bevilacqua’s genetic profile by the prosecutor Marini through attorney Jacopo Pepi. Later, with the help of researcher Daniele Trinchieri, I sent it to the American police for a check with the samples from the Zodiac case. Any compatibility would also have been important for the outcome of the defamation criminal trial started from a lawsuit by Bevilacqua and carried out by the Florence DA’s Office.
Since 2020, I have reported to the American detectives in charge of the Zodiac case of the availability of Bevilacqua’s DNA profile, but in the end it was me who transmitted it three years later.
In 2022, assistant Florence DA Luca Turco, who the previous year obtained the dismissal of the investigation into Bevilacqua resulting from my statements in 2018, rejected the request to transmit his profile to the US authorities for an advanced check from my attorneys Simona Buccheri and Patrizia Gottini.
Nine months later, Bevilacqua died of natural causes at the age of 87.
In an investigative annotation of June 1, 2018, the CO of the ROS Carabinieri of Florence, col. Giuseppe Colizzi, reports that they had not been able to collect Bevilacqua’s DNA in 2018 due to the decision to interview him as an “informed person on the facts” at his home at the presence of some relatives, instead of in a station of the Arma, (next image).
The collecting of Bevilacqua’s DNA by the Sienese DA’s Office in 2020 made it possible to fill the gap left by the Florentine investigators.
"...the interview [with Bevilacqua] took place in his home in the presence of his wife, daughter and grandson and for this reason it was not possible to discreetly collect any sample of DNA."
Col. Giuseppe Colizzi's investigative annotation, June 1, 2018
Zodiac, il Mostro 
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