An alert citizen helped police catch a suspected robber Thursday night after he witnessed a man pointing a gun at another man in a downtown parking lot near Seymour and Nelson streets. The victim was robbed of his bag and sunglasses. As the suspect walked away, the witness approached the shocked victim to confirm he was okay and then called 9-1-1.

The witness continued to watch the suspect until he flagged a taxi and got inside. Officers arrived and took the suspect into custody without incident during a high-risk vehicle stop.

An airsoft pistol was located under the passenger seat in the taxi. Air canisters for the pistol were also located in his backpack.

The suspect was arrested for armed robbery, use of an imitation firearm in the commission of an offence, and pointing a firearm. He was taken to jail.

The victim was not physically injured.