 but there was no gun violence compared to four shootings on July 4th last year and seven on Boom Island the year before. Minneapolis Police Chief Brian O'Hara says most of those arrested will be charged with felony rioting, but those who deliberately aimed fireworks at others will face felony assault charges. Some of those arrested had out-of-state licenses from Kansas, Massachusetts, and Maine, and authorities blame social media pop-up invitations encouraging people to come to Minneapolis and cause trouble.