A shooting in a New Orleans park left 17 people injured on Sunday, and police say they know there are “hundreds of witnesses” who have yet to come forward with what they know. Several hundred people, about 200 to 300, had gathered at Bunny Friend Playground for an impromptu music video filming late Sunday when two groups began firing on each other. Ten women and seven men, 11 of them younger than 21, were injured and received treatment at area hospitals. Mayor of New Orleans, Mitch Landrieu said he and Police Superintendent Michael Harrison visited victims in the hospital and were particularly impressed with a 10-year-old who was suffering from a bullet wound, wanting to serve his country when other young people seem intent on tearing it apart. “He was really being brave and courageous,” the mayor said. “If you want to take back your community, you have to help us,” Landrieu said. “I need everyone to step up if you want to make this city, a city of peace.” There are plenty of witnesses, hundreds of them, that saw what happened, and Landrieu and Harrison shared their hunch that many of those witnesses may have captured the violence on video.