York Regional Police have announced the arrest of a woman wanted in connection with a fatal 2024 stabbing that left a 16-year-old male deceased after he arrived at a Richmond Hill hospital with life‑threatening injuries.
How the arrest unfolded
Police confirmed that Katherine Bergeron‑Pinzarrone, 27, of Mississauga, was arrested by the Calgary Police Service on July 9, 2026. She faces a charge of second‑degree murder in relation to the death of a 16‑year‑old male from Montreal.
- Incident date: Aug. 8, 2024 — victim arrived at a local hospital in Richmond Hill with life‑threatening stab wounds and was later pronounced dead.
- Initial investigation identified two male suspects who have links to Quebec and an alleged auto theft ring.
- Manhunt extended across provinces; a Canada‑wide warrant had been issued.
Police collaboration credited
York Regional Police said the arrest was the result of sustained investigative work and inter‑jurisdictional cooperation, including assistance from the BOLO Program and the Calgary Police Service.
“Through the dedicated work of our Homicide Unit and our partnership with the BOLO Program and the Calgary Police Service, the suspect in this homicide investigation has been located and arrested,” said Deputy Chief Ryan Hogan.
The force described the arrest as an important step toward accountability for the victim and his family. York Regional Police also stated the homicide investigation remains active and are seeking any additional information from the public.
Case context and next steps
When officers first responded in August 2024, investigators tied two male suspects to the case: Lensly Francois, 31, of Saint‑Hubert, Que., and William Gallant, 26, of Quebec City. At the time, police alleged links between those suspects and a significant auto theft operation. The recent arrest in Calgary does not close the investigation; YRP said further work is ongoing and encouraged anyone with information to contact the Homicide Unit.
| Item | Detail |
|---|---|
| Victim | 16‑year‑old male, from Montreal |
| Initial incident | Aug. 8, 2024 — stabbing; victim arrived at Richmond Hill hospital |
| Arrest | Katherine Bergeron‑Pinzarrone, arrested July 9, 2026 in Calgary |
| Charge | Second‑degree murder |
Anyone with information relevant to the investigation is asked to contact York Regional Police’s Homicide Unit. The force continues to coordinate with partners as charges proceed through the legal system.
