One man has been arrested and another is wanted for the gangland-style fatal shooting of a 65-year-old man in the Caledon, Ont., community of Bolton more than four years ago.

The Ontario Provincial Police have also announced an arrest in a related shooting in late 2020 that left one man — the son of the man killed in Bolton in 2021 — injured.

On Jan. 18, 2021, officers responded to a home on Harvest Moon Drive in Bolton and found Giovanni (John) Costa dead and his son, Michael, seriously injured following a double shooting.

In October, OPP released new video showing the suspect vehicle, a dark sedan, and two people entering the home where police say the father and son were shot.

Months earlier, on Nov. 12, 2020, Michael Costa was shot twice in Vaughan outside a café on Steeles Avenue

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