Shamel Lancaster of Southeast D.C. was pronounced dead May 12, four days after police found him unconscious and suffering from head trauma on the 900 block of 8th Street SE about 3 a.m. The block connects upper and lower Barracks Row under the Southeast Freeway.
The D.C. medical examiner on Monday determined Lancaster’s death was a homicide, caused by blunt force trauma to the head on May 8.
Police released a video of “persons of interests” sought in connection with the crime. But the video is no longer available on YouTube.
Police spokeswoman Aquita Brown said authorities no longer need the public’s help in the case as they work to finish their investigation.
It wasn’t immediately clear whether police have made contact with the people in the video. But they haven’t made any arrests.