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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 ºÃÉ«tvwas first published Nov. 14, 2025.