Screenshot from MPD body-worn camera video.

The Office of the D.C. Medical Examiner has ruled the death of Terrence Sterling a homicide.

The cause of death for 31-year-old Sterling, who was fatally shot by D.C. Police Officer Brian Trainer on September 11, was gunshot wounds to the neck and back, the medical examiner determined. The office declined to provide more details. The news was first reported by The Washington Post.

D.C. Police maintain that 27-year-old Trainer, a four-year veteran of the department, shot Sterling after he intentionally drove his motorcycle into the passenger door of a police cruiser following reports of reckless driving, but eyewitnesses have come forward with conflicting accounts.

Terrence Sterling. (Image via Twitter)

The city has a comprehensive body-worn camera policy for officers, but the camera was not recording until after the shooting occurred. Mayor Muriel Bowser released footage of the shooting’s aftermath yesterday, and identified Trainer as the responsible officer.

The video shows an officer performing CPR on Sterling and another telling Sterling to “Keep breathing, look at me!” Bowser said she released the footage and Trainer’s name because she deemed it in the public interest “to create broader accountability between law enforcement and communities, and to maintain open and transparent government,” according to a release.

The D.C. Police Union has called the move “reckless.” Trainer was put on administrative leave on September 12, and a second officer, who was driving the cruiser, was placed on leave because he allegedly broke police protocol by using the vehicle as a barricade, Bowser told Fox 5.

Activist group Black Youth Project 100 began calling for D.C. to release the officer’s name, and fire him, more than a week ago, and staged demonstrations for police transparency earlier this week.

Since Sterling’s death, police updated their body camera policy. Now, dispatchers will be required to remind officers to activate their cameras, and officers have to confirm they’ve done so. Interim Police Chief Peter Newsham said that there are 10 cases under investigation in which officers were not recording incidents as required under the policy, including an officer-involved shooting in Petworth on September 7.

There is another protest to demand justice for Sterling slated for next Monday.

This post has been updated to reflect that the protest was moved from Friday to Monday over weather concerns.