A shooting was reported to police at 3:12 a.m. on Tuesday, after shots had been fired from the outside of the C Lounge.
Responding officers found two people who had been shot — a woman who was found across the street from the club and a man at a nearby gas station.
Both victims were taken to hospital. The man survived the shooting, but the woman did not.
Police have since identified 32-year-old Jelena Loncar as the woman shot dead.
On Wednesday, police issued a news release asking for members of the public to help them solve the crime by submitting images or video. They are asking for such media to be uploaded to a link on the police website.
Anyone with information is asked to contact investigators at 416-808-7400. Information can also be passed on anonymously through Crime Stoppers at 416-222-8477.