Garlasco Murder Case: Chiara Poggi, Alberto Stasi and the Latest Developments

A clear English-language guide to the murder of Chiara Poggi, Alberto Stasi’s final conviction and the renewed investigation into Andrea Sempio, with a timeline and carefully attributed updates.

Updated 24 October 2026. The latest procedural development verified for this update is the filing of defense reports on 16 October 2026.

The Garlasco murder case concerns the killing of 26-year-old Chiara Poggi at her family home in northern Italy on 13 August 2007. Her boyfriend, Alberto Stasi, received a final 16-year prison sentence in 2015 after two earlier acquittals. A renewed investigation into Andrea Sempio, a friend of Chiara’s brother, has since brought the evidence back under scrutiny.

The essential distinction is that Stasi’s conviction remains in force, while Sempio denies involvement and is presumed innocent. An investigation into another person does not, by itself, overturn an existing judgment.

For English-speaking readers following the delitto di Garlasco, the challenge is separating judicial decisions from competing expert interpretations and television commentary. This guide explains the main events, the disputed evidence and the developments verified for this update.

Latest Garlasco Case Update: October 2026

On 16 October, Sempio’s defense filed five expert reports responding to material added by prosecutors following the latest closure of their investigation on 28 September.

According to Il Giorno, the submissions address footwear measurements, palm print 33, genetic evidence associated with Chiara’s fingernails, and medical questions about the attack and time of death. These are defense submissions, rather than findings accepted by a trial court.

ANSA reported that prosecutors were expected to request that Sempio be sent to trial. His lawyer Angela Taccia also described that outcome as likely, while disputing the case against him. The reporting verified here does not establish a subsequent order sending him to trial.

The closure of preliminary investigations should therefore not be confused with a conviction, an acquittal or a completed trial.

What Happened to Chiara Poggi?

Chiara Poggi was killed at her family’s home on Via Pascoli in Garlasco, in the province of Pavia, Lombardy. She suffered a fatal attack with a blunt object. Stasi raised the alarm, saying he had discovered her body on the stairs leading toward the basement.

The original investigation focused on Stasi. Police examined his account of discovering the body, physical traces and his movements that morning. His lawyers contested the prosecution’s reconstruction.

The case became known nationally by the town’s name. However, Chiara’s identity can disappear behind arguments about suspects and forensic details. She was a young woman whose death left her family facing both a criminal investigation and years of public attention.

Garlasco Murder Case Timeline

Date	Development
13 August 2007	Chiara Poggi is killed at her family home in Garlasco.
17 December 2009	Alberto Stasi is acquitted at first instance.
6 December 2011	An appeal court upholds his acquittal.
2013	The Court of Cassation annuls the appeal judgment and orders a new appeal hearing.
17 December 2014	The new appeal proceedings result in a 16-year sentence.
12 December 2015	The Court of Cassation confirms the conviction.
2017	An earlier investigation into Andrea Sempio is closed.
March 2025	Sempio again comes under investigation.
December 2025	A court-supervised evidentiary procedure examines disputed genetic findings.
June 2026	Stasi is granted a community-based alternative to imprisonment.
28 September 2026	Prosecutors communicate a further closure of the investigation into Sempio.
16 October 2026	Sempio’s defense files five expert reports challenging the prosecution’s case.

The timeline brings together the judicial history and the more recent developments discussed below.

Why Was Alberto Stasi Convicted After Two Acquittals?

The different outcomes reflect the case’s progression through Italy’s courts. The initial acquittals were followed by an annulment and a new appeal proceeding, which produced the conviction later confirmed in 2015.

The case against Stasi involved a combination of circumstantial and forensic arguments. Disputes included whether his account of moving through the house was consistent with the blood traces and the condition of his shoes, alongside evidence concerning footwear, bicycles and the available timeline.

It is misleading to reduce the outcome to how calm he sounded or whether he appeared sufficiently distressed. Those impressions cannot substitute for an account of the evidence considered by the courts.

Equally, the earlier acquittals should remain part of the history without being presented as decisions that still determine his legal status. The operative judgment is the final conviction.

Who Is Andrea Sempio?

Andrea Sempio is a friend of Chiara’s brother, Marco Poggi. He was investigated previously, and that inquiry was closed in 2017. He became the focus of renewed investigative activity in March 2025.

Being investigated again does not mean an earlier closure was a conviction or an acquittal after trial. It means authorities are examining allegations through a renewed proceeding.

Sempio denies involvement. The evidence advanced against him, and the objections raised by his lawyers, must be assessed through the judicial process.

What Does the DNA Evidence Actually Show?

Genetic material associated with fragments of Chiara’s fingernails has attracted particular attention. Headlines describing a definitive DNA identification oversimplify the findings.

ANSA’s account of the court-appointed expert’s report described compatibility with Sempio or men belonging to his paternal family line. It also reported substantial limits concerning the underlying data and the interpretation of the traces.

The report could not scientifically establish when or how the material was deposited, or reliably determine whether it had been above or beneath the nails. That matters because compatibility does not establish that a trace was left during the attack.

The later court discussion also concerned the quality of historical analytical data. Readers should distinguish a reported genetic association from proof identifying an attacker.

Palm Print 33 and the Footwear Dispute

Two different categories of trace are often discussed together: the palm mark known as impronta 33 and footwear impressions.

Sempio’s defense challenges the attribution and interpretation of palm print 33, including whether blood was present. Those objections are part of its case and should be identified as such.

The footwear arguments have also changed as further expert opinions have emerged. Reporting in October described prosecution consultants arguing that particular shoe dimensions were compatible with Sempio’s foot measurements.

His defense disputes that interpretation. On 16 October, Taccia described the relevant footprint as approximately size 40 and argued that it was smaller than Sempio’s foot.

These positions are competing interpretations. Neither should be rewritten as an established identification or exclusion.

Why the Medical Timeline Is Being Reexamined

Recent reporting also concerns the interval between Chiara’s first injuries and death.

Rai News described a prosecution-commissioned assessment by Cristina Cattaneo and Biagio Eugenio Leone suggesting an interval of tens of minutes, plausibly 30–60 minutes, while acknowledging that greater scientific precision was unavailable.

That estimate describes the possible duration of events. It should not be treated as an exact clock time for the murder. The defense reports filed in October also address injuries, dynamics and timing.

Is Alberto Stasi Still in Prison?

Stasi’s sentence remains valid, but describing him simply as still serving it inside prison is outdated.

In June 2026, the Milan supervisory court granted affidamento in prova ai servizi sociali, a community-based alternative under supervision. Corriere della Sera reported that the order was deposited on 13 June.

The measure followed earlier access to work outside prison and semi-liberty. It concerns how the remaining sentence is served. It is not an acquittal, a pardon or a decision overturning the conviction.

What Happens Next?

The next developments to watch are formal prosecution applications, judicial decisions about a possible trial, and any documented application to review Stasi’s conviction.

The renewed investigation and a review of an existing conviction are separate procedural questions. A prosecutor’s theory is not a judgment, and the filing of an expert report does not mean a court has accepted its conclusions. The October reporting described a prospective prosecution request and continued preparations concerning a possible review of Stasi’s case.

For wider coverage, visit Italia Mia’s Italian news in English. Updates to this guide should identify the date, the procedural step and the source supporting each material change.

Frequently Asked Questions

Who was convicted of killing Chiara Poggi?

Alberto Stasi was definitively convicted in 2015 and received a 16-year sentence. That conviction remains in force.

Has Andrea Sempio been found guilty?

The reporting verified for this update does not establish a conviction against him. He denies involvement and is presumed innocent.

Does the DNA conclusively identify Sempio?

No. The reported findings describe paternal-line compatibility with important scientific limitations. They do not establish when or how the material was deposited.

Has Stasi been exonerated?

No. His transfer to a community-based sentencing measure does not overturn his conviction.

What is the latest verified procedural development in this guide?

The filing of five defense expert reports on 16 October 2026, following the further closure of investigations communicated on 28 September.