At least 22 people were injured and a number of people are missing Sunday after a parking garage atop an Ontario mall collapsed the day before. Ontario Provincial Police said they have a two-page list of people who are unaccounted for. They also said none of those who were wounded had life-threatening injuries, and they did not believe there were any fatalities. The collapse occurred at 2:20 p.m. Saturday. Cars came crashing through the roof, and the cave-in triggered a gas leak, causing officials to cut power to the building during the search.