Police responded and were able to contain the area, eventually ending the concert after a “minor incident”, said Contee, who did not provide details about the incident but said “people started scattering at that point”. Several people were injured in their legs and ankles as the crowd dispersed and police, firefighters and paramedics were on the scene, the police chief said. Emergency personnel recovered an illegal firearm from a man as he cared for the injured, he said. Shots were fired near 14th Street and U Streets Northwest, near the concert venue, where the teenager was killed and others were injured. Several firearms were found at the scene, including a gun on one of the two adults who was shot and taken to a local hospital, Contee said. The officer and two civilians have been treated and are in stable condition, he said. The weapon used to shoot the policeman has not been found and no police have used the firearms, he said. Mayor Muriel Bowser stressed the importance of security and securing permits for events in the city. “We have a child who was killed today at an event that was not properly planned for the number of people who were here with guns,” Boozer told a news conference. “The leader and I will continue to ensure that we have the resources we need in these corridors and in all our corridors, but we need some responsibility here.” Officials will “consider what legal action should be taken as a result of an unauthorized incident in our city,” Contee said. “Unfortunately things like this can happen when you have the wrong combination of people or people inserting firearms into a situation,” he said. “When you have large concentrations in a dense area, all that is needed is for a person to insert a gun into the situation that makes it deadly. In this case, unfortunately, a 15-year-old lost his life.” The Office of Alcohol, Tobacco, Firearms and Explosives (ATF) is assisting local police in the investigation, according to the agency’s Washington Field Division.
