Arrests made, one wanted in 2020 homicide and attempted murder in Vaughan

Provincial police say two people have been arrested and another is wanted in an investigation into an attempted murder and a homicide in southern Ontario.

OPP say York Region police officers responded to a report of a shooting in Vaughan, Ont., the night of Nov. 12, 2020 and one person was injured and taken to hospital.

They say OPP officers responded to a shooting at a home in Bolton, Ont., the afternoon of Jan. 18, 2021, where one of the residents was the victim from the 2020 Vaughan shooting.

Police say another resident, 65-year-old Giovanni Costa, was found dead at the scene of the Bolton shooting.

They say a 28-year-old man from Barrie, Ont., faces multiple charges, including attempted murder and conspiracy to commit murder, while a 25-year-old Toronto man has been charged with first-degree murder and attempted murder.

Police say they’ve issued a provincewide warrant for a 48-year-old man from London, Ont., who is wanted for first-degree murder, attempted murder and conspiracy to commit murder.

This report by The Canadian Press was first published Nov. 14, 2025.