The 2025 Ontario Homicide Victim List is available here
On Wednesday, October 29, 2025, officers with the Niagara Regional Police Service (NRPS) 6 District responded to reports of a possible weapons incident at a home on Fares Street in Port Colborne.
Members of the Emergency Task Unit (ETU) assisted with the response and, upon entering the residence, discovered a deceased adult male inside.
Acting on information gathered at the scene, officers were directed to a second address on Mitchell Street, where it was believed a possibly armed suspect had fled. Police cleared that location, but the suspect was not found.
As a safety precaution, residents were advised to stay indoors and local schools were placed under hold and secure orders while police continued their search.
The suspect was identified as 27-year-old Brady Neff of Port Colborne. A police presence remained in the city throughout the day as officers worked to locate him. The investigation led police to the west side of the canal near Clarence Street, and with that development, the hold and secure orders at local schools were lifted.
At approximately 3:00 p.m., officers located Neff in the area of Killaly Street East and Welland Street in Port Colborne, where he was taken into custody without incident. Police thanked the public for their cooperation during the search.
The victim has since been identified as 42-year-old Mark Pero of Port Colborne. The NRPS Homicide Unit has assumed control of the investigation, which has now been officially classified as a homicide.
Neff’s initial charge has been upgraded to second-degree murder. Detectives have also uncovered evidence of additional incidents involving the accused prior to the homicide.
As a result, Neff faces several additional charges, including:
- Domestic Assault
- Uttering Threats
- Choking
- Pointing a Firearm
- Possession of a Firearm
Police confirm the weapon believed to have been used has been recovered, and that Neff and Pero were known to each other. Investigators believe the incident was targeted.
The investigation remains ongoing, and anyone with information is asked to contact the Niagara Regional Police Service at 905-688-4111, option 3, ext. 1009417.