Over the course of half an hour on Saturday, a person was involved in four alleged unprovoked attacks in downtown Vancouver. Police say a 50-year-old man is facing two counts of assault and two more of assault with a weapon in relation to the crime spree. Advertisement AdvertisementAdvertisement AdvertisementImmediately after, investigators say the same man walked up to a man on Beatty Street and, when he was rebuffed, punched the man in the face before taking off. About 10 minutes later, another victim was punched in the face without warning. Investigators believe there might be other victims, and are encouraging anyone who was affected or witnessed an attack to call Vancouver police.