A teenager boy was shot dead by an attacker in the 1400 block of U Street, Northwest 14th and U Street in the Washington State of the United States in yet another horrific example of a mass shooting. Multiple people were shot at on Sunday in Washington, DC, according to sources, purportedly near the venue of the Juneteenth music festival. Officials can be seen treating many persons who are lying on the street in a video from the scene of the incident. According to reports, the attack injured a Metropolitan Police Department (MPD) officer as well as a few other individuals. They're being treated at a local hospital right now.