Police were called to the parking lot of a plaza located at 8000 Highway 27 north of Highway 7 in the early hours of July 22.
When officers arrived at the scene, they found "several people engaged in a physical confrontation," all of whom were patrons of the Al-Finjan nightclub located in the plaza.
Police also located a Toronto man suffering from stab wounds. Evan Gorgees, 29, succumbed to his injuries at the scene.
On Wednesday, police arrested Azize Sepan, 48, of Vaughan.
Sepan faces a charge of second-degree murder in connection with Gorgees’ death.
Sepan appeared in a Newmarket court on Thursday.