← Back to Italy casesPatricia Delzotto, Giovanni Battista Delzotto, and others Injured in Alleged Murder Attempt by Mattia Delzotto, Nova Milanese, Lombardy, Italy
Case Summary
In 2017, multiple members of the Delzotto family in Nova Milanese, Italy, fell ill with severe symptoms including abdominal pain, numbness, and coma, leading to several deaths. Initial hypotheses of environmental poisoning were disproven after toxicological tests revealed thallium poisoning. Investigations uncovered that Mattia Delzotto, a family member, had deliberately poisoned relatives using thallium sulfate purchased online under a false identity. Mattia was arrested and charged with three murders and five attempted murders. Despite evidence of premeditation, he was declared mentally unfit for criminal responsibility but remains detained in a medical facility due to danger to society. The case highlights a rare instance of serial familial poisoning driven by complex psychological and familial dynamics.
Basic Information
Country: Italy
State/Province: None
City/Region: Nova Milanese
Incident Type: Murder
Relationship Status: Married
Relationship Duration:
Incident Date: Sept. 1, 2017
Incident Sequence and Additional Victims
Primary reported outcome: Homicide
Reported self-harm outcome: No suicide or attempt reported
Reported sequence: Order not reported / unclear
Additional victims reported: 7
Additional victim events:
- Giovanni Battista Delzotto — Family or household member; Killed; Order not reported / unclear
- Gioia Maria Pitana — Family or household member; Killed; Order not reported / unclear
- Patricia Delzotto — Family or household member; Killed; Order not reported / unclear
- Laura Delzotto — Family or household member; Attempted harm; survived; Order not reported / unclear
- Serafin Poliani — Other third party; Attempted harm; survived; Order not reported / unclear
- Alciopalma — Family or household member; Attempted harm; survived; Order not reported / unclear
- Marinapadan — Family or household member; Attempted harm; survived; Order not reported / unclear
Relationship Journey
Relationship Origins:
- Family introduction
- Arranged marriage
Relationship Stages:
- Married Living Together
Analysis
Contributing Factors:
- Mental instability
- Family pressure
Red Flags:
- Manipulative behavior
- Social Isolation / Withdrawal
- Mental Health Deterioration / Hopelessness
Motives:
- Revenge
- Eliminate romantic rival
Relationship Outcomes:
- Homicide during marriage
- Arrest made
- Investigation still ongoing
People Link Graph
Relationship Journey Graph
Origin
- Family introduction
- Arranged marriage
How the relationship or connection began.
Status
- Married
Stages
- Married Living Together
Important relationship phases recorded for this case.
Warning Signals
- Manipulative behavior
- Social Isolation / Withdrawal
- Mental Health Deterioration / Hopelessness
Reported red flags or early concern points.
Pressure Points
- Mental instability
- Family pressure
- Revenge
- Eliminate romantic rival
Contributing factors and possible motives from the available sources.
Incident
2017-09-01
Outcome
- Homicide during marriage
- Arrest made
- Investigation still ongoing
Recorded relationship or case outcome.
Sources
English labels are shown first. Original-language titles are preserved for source verification.
Patricia Delzotto, Giovanni Battista Delzotto, and others Injured in Alleged Murder Attempt by Mattia Delzotto, Nova Milanese, Lombardy, Italy
Tea Time N Crime | چای و جنایت - Iran · Original language: Italian
View original title
🩸نمیدونستند چه «سوغات شیطانی» از سفر آوردهاند! | پرونده جنایی
AI Intelligence Assessment
Relationship Pattern
Domestic Violence
Pattern Analysis
The case involves a family member, Mattia Delzotto, who systematically poisoned relatives over months using thallium, reflecting a pattern of domestic violence through covert poisoning driven by psychological instability and familial tensions.
Investigative Notes
Police investigation focused on toxicological analysis after initial environmental hypotheses failed. Discovery of thallium in homemade teas and water sources led to suspect identification. Mattia Delzotto was arrested and charged with multiple murders and attempted murders. Court proceedings revealed mental health evaluations affecting criminal responsibility. The case remains under medical detention with ongoing monitoring.
Investigation Confusion
Initial confusion over cause of illness and deaths, with hypotheses including environmental contamination and accidental poisoning. Uncertainty about motive and suspect identity until toxicology and digital evidence linked Mattia. Mental health status complicated legal responsibility assessments.
Case Reconstruction / Puzzle Pieces
Family members fell ill sequentially after a summer trip and exposure to contaminated water and teas at family properties. Toxicological tests identified thallium poisoning. Digital forensics uncovered false online purchases of poison by Mattia Delzotto. He administered poison via shared water bottles and teas. Arrest and trial followed, with mental health evaluations influencing verdict and sentencing.
Risk Assessment
High risk due to premeditated poisoning within a family setting, involving multiple victims and use of a highly toxic substance, with ongoing concerns about offender's mental health and potential danger to society.
Key Takeaways
Serial familial poisoning can be difficult to detect due to symptom similarity with common illnesses. Digital evidence and toxicology are critical in uncovering covert domestic violence. Mental health complexities may affect legal outcomes. Close monitoring of family dynamics and early intervention in behavioral changes are essential.
AI Case Q&A
What early signals mattered most?
Multiple family members falling ill with similar unexplained symptoms shortly after a shared trip and exposure to common food and water sources.
Which clues helped connect the case?
Toxicological detection of thallium in blood, urine, and homemade teas; digital purchase records under false identity; presence of poison in shared water bottles.
Which evidence types appeared strongest?
Toxicology reports, digital purchase receipts, forensic analysis of food and water samples, hospital records.
Witness / Eyewitness Statements
Not reported.
How did follow-up reports change the understanding?
Initial environmental contamination theories were replaced by confirmed intentional poisoning after toxicology and digital evidence emerged. Mental health evaluations influenced legal responsibility decisions.
What remained unclear?
Exact motive beyond stated delusional beliefs remains partially unclear; extent of potential additional victims and full scope of poisoning not fully resolved.