Police have identified the teenage victim as Chase Lorenzo Poole of Northwest, D.C.
The shootings happened Sunday night at Moechella, a Juneteenth celebration on 14th and U Street, that police describe as an ‘unpermitted event.’ The chaotic scene featured crowds of people and loud music.
Watts spoke with Daniel Dyson who was at the event when the shootings happened.
"I was sitting next to a cop. Next thing you know, shots rang out," Dyson told Watts. "He did not want to stay down. He proceeded on. He was shot in the leg. And he kept moving. He went to the fire. He did not run away."
Dyson said he was near Poole who was shot and killed.
"He was screaming out for his mom," Dyson told Watts. "And it's hurtful to hear that man. And no one was able to help him."
"To see him go. It bothers me. All of this that’s going on here it bothers me. And it needs to come to a stop. It really does. I couldn’t even tell you how I feel about certain things – and this right here is too much for me."
"It don’t matter what your color is - your race, what kind of uniform you're wearing. It needs to come to a stop. And if it doesn’t, it's going to be innocent kids dying every day because people don't want to do this," he said.
"We were trying to enjoy ourselves. Crowds kept running back and forth. To see this happen – and actually here again, where someone left on a holiday. This is something I will never forget."
D.C. Police Chief Robert Contee said over 100 officers were at the scene.
Contee confirmed one officer was shot in the leg and that he is expected to recover.
On Monday afternoon, the police chief released the following statement on the matter:
"Last night's shooting tragically took the life of a 15-year-old boy and left three others, including an MPD officer, injured. The person who took Chase's life and brought this violence to our community must be held accountable. The investigation is ongoing as detectives canvass the scene to collect evidence and conduct witness interviews. We are urging community members to share any information, photos, or videos that would be of assistance in our investigative process. Tips are often the critical piece of information that helps police identify suspects, and can be provided to the Metropolitan Police Department at 202-727-9099 or texted anonymously to 50411. Anyone who provides information that leads to the arrest and conviction of an individual responsible fo any homicide in the District of Columbia is eligible for a reward of up to $25,000."