A fight between two groups of young people who knew each other escalated into gunfire, police said A shooting altercation between two groups of young people at a shopping mall in Dearborn, Michigan, left two people dead and a third injured over what is typically the most violent weekend of the year in the US, police said. The shooting occurred as the US began celebrating the Fourth of July, historically a holiday weekend that sees higher rates of gun violence across the country. In 2024, the Gun Violence Archive reported more than 500 shootings over Independence Day weekend.