A new investigation into the 2007 murder of Chiara Poggi has shifted focus toward Andrea Sempio, as the Carabinieri of the Milan Investigative Nucleus present evidence that challenges the definitive conviction of the victim’s former boyfriend, Alberto Stasi.
New Evidence and Forensic Findings
According to an informative report from the Carabinieri, several key pieces of evidence now link Andrea Sempio to the crime committed on August 13, 2007, in Garlasco:
- DNA Evidence: Investigators state that the victim fought back during the attack, retaining DNA under two fingernails of each hand. This DNA is compatible in the paternal line with the Y-haplotype of Andrea Sempio.
- Shoe Size: While the original trial established the killer wore a size 42 shoe (brand Frau), anthropometric measurements by consultant Cristina Cattaneo indicate Sempio’s foot is “compatible with size 42-43,” despite Sempio’s consultants claiming he wears a size 44.
- The Murder Weapon: Investigators believe the lesions are compatible with a claw hammer that has been missing from the Poggi home since the summer of 2007.
- The “Traccia 33” Print: A palmar print found on a wall, identified as “traccia 33,” was generated by a wet hand. The Carabinieri suggest Sempio likely used the kitchen sink to clean himself of blood after the attack.
Regarding the timeline, the medical-legal report by Cristina Cattaneo places the death between 7:00 and 12:30. Based on the victim disabling her alarm at 9:12, investigators have identified two potential windows for Sempio to have committed the crime: between 9:12 and 9:58, and between 9:58 and 11:25.
The Collapse of the Alibi
A central piece of Sempio’s defense was a receipt from a parking lot in Vigevano dated August 13, 2007, intended to prove he was not in Garlasco on the morning of the murder. However, an environmental interception from October 22 reveals Giuseppe Sempio, Andrea’s father, telling his wife, Daniela Ferrari: “Because anyway the receipt, you did it!”
This suggests the document may have been fabricated by Sempio’s mother, potentially nullifying his primary alibi.
Behavioral Evidence and Interceptions
The investigation has also highlighted concerning patterns in Sempio’s personal records and communications:
- Moleskine Notes: Entries from 2019, 2020, and 2021 show Sempio tracking Alberto Stasi’s legal appeals and noting that his mother was “in panic.” Other notes describe violent dreams, such as stabbing people or attacking a blonde woman.
- Internet History: Investigators report numerous web searches related to satanism, murders, sexual predators, violence against women, decapitation, and autopsy phenomena.
- Interceptions: In an April 2025 interception, Sempio expressed annoyance over a 2007 phone call where Chiara Poggi had hung up on him, commenting that she had been a “bella stronza” (real translation: “quite a bitch”). When contacted by the Carabinieri of Voghera in February 2025, Sempio was intercepted in his car asking, “what the fuck have they found…??”
Implications for Alberto Stasi
The Carabinieri’s report is sharply critical of the original proceedings that led to Alberto Stasi’s 16-year sentence. The Milan Investigative Nucleus described the evidence used to convict Stasi as “incomprehensible” and “paradoxical,” stating it is difficult to logically follow a “suggestion created during the trial phase and ridden by the media for 18 years.”
This follows a formal request for sentence revision filed by Stasi’s lawyers in June 2020, which pointed toward Sempio as the responsible party.
Sempio’s Response and Potential Next Steps
Andrea Sempio has vehemently denied the accusations. In a statement read by Gianluigi Nuzzi on the program ‘Quarto Grado,’ Sempio stated: “I hope that this does not happen because, I did not commit this atrocious act.” He expressed closeness to the victim’s relatives, who have sought justice for 20 years.
Given the closure of the Carabinieri’s investigative report and the emergence of the DNA and alibi evidence, a possible next step could be the formal arrest of Andrea Sempio. These findings may provide the legal basis for a successful revision of Alberto Stasi’s conviction, potentially leading to his exoneration.
