“The Monster of Florence” is the nickname Italian media gave to a long-running, still-debated criminal case tied to eight separate double-fatality incidents (16 people total) in the countryside around Florence between 1968 and 1985, most often involving pairs in isolated locations.

What the timeline looks like
Most summaries frame the case as beginning with a 1968 incident, then continuing through the 1970s and intensifying in the early 1980s, with the final incident in 1985.
The main suspects investigators focused on
Over the decades, investigators pursued multiple theories and arrested several people, including Stefano Mele early on and later Pietro Pacciani in the 1990s. Media and later retrospective reporting highlight how the investigation was marked by shifting leads and disputes over whether authorities ever truly found the right person.
What the courts ultimately decided
Here’s the cleanest, court-outcome-only view (without the noise):
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Pietro Pacciani: convicted at the trial level in 1994, then acquitted on appeal in 1996; a new trial was ordered, but he died in 1998 before it happened.
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Mario Vanni and Giancarlo Lotti: ultimately convicted in the final instance in 2000 for a portion of the incidents (often described as four of the eight double cases).
So, was the person responsible ever “caught”
That depends on what you mean by “caught.”
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If you mean “were people convicted in court?” Yes—Vanni and Lotti were convicted, and Pacciani was convicted at one stage before being acquitted.
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If you mean “is there broad agreement that the core mystery is solved?” No. Major reference sources and reporting describe the case as still disputed and effectively unresolved in the public mind, with ongoing debate about whether the real perpetrator (or perpetrators) was ever identified with certainty.
Why the case still won’t settle
Several factors keep it “open” culturally (and, in some respects, procedurally): doubts about the investigation’s direction, disagreements about how to interpret evidence and testimony, and repeated public calls to re-examine leads. For example, families of those involved formally urged prosecutors to take another look in 2022.
There’s also periodic attention to new forensic work: a 2024 report highlighted newly discussed DNA findings connected to the case, which helped renew interest and speculation about whether anything definitive could still emerge.
How the Netflix series fits into the “true story”
Netflix’s 2025 limited series The Monster of Florence dramatizes the case and explicitly frames it as a still-unresolved mystery, with creators Stefano Sollima and Leonardo Fasoli presenting events through different suspect-centered angles rather than claiming a single final answer.

