Police say Nema Mansouri, 28, of Toronto, is now in police custody. He was being sought on charges of second-degree murder and attempted murder in connection with an incident on Colombo Crescent in Vaughan.
At 11:50 p.m. ET on Wednesday, police responded to a weapons call on the street, near Jane Street and Teston Road.
Police say that an altercation had occurred, which resulted in two victims — a 22-year-old man and a 27-year-old man — suffering stab wounds. The two men were cousins.
Both victims were taken to Toronto's Sunnybrook Hospital where one man was pronounced dead.
On Thursday morning, York Regional Police identified the deceased as Muzaffar Goraya, 22, of Vaughan.
He had been studying business at Humber College and worked at Air Canada.