The Metropolitan Police Department has released body-worn camera footage of the D.C. police pursuit and crash that led to the death of 20-year-old Karon Hylton-Brown last Friday while he was riding a moped.

In the videos (the first is about seven minutes long, and the other about three minutes long), a police cruiser is seen moving at increased speeds with flashing lights. Hylton-Brown is seen in the frame riding a moped while police follow him down an alley. When Hylton-Brown exits an alley in the 700 block of Kennedy Street NW, he collides with a passenger vehicle traveling on Kennedy Street.

In a press release, MPD says that officers “observed a person operating a Revel Electric Moped without a helmet on the sidewalk.” Then, “officers activated their emergency lights and attempted to make a traffic stop.”

Multiple outlets are reporting that Hylton-Brown died on Monday, three days after the crash in Brightwood Park. His family says the police who chased him are responsible.

D.C. officials spoke about the incident at a Thursday morning briefing.

“The footage shows that the MPD car does not collide with Karon. That said, we are using the footage as part of an investigation that will decide whether MPD policies were broken,” D.C. Mayor Muriel Bowser said at a press conference earlier Thursday.

“It looks like our police were following the moped that Karon was riding,” Bowser continued. “And if your question is, ‘Does that violate our policies about chasing?’ You know, we have very clear policies about no chasing.”

Police in D.C. are not allowed to chase vehicles for traffic violations, Police Chief Peter Newsham told The Washington Post earlier this week.

The officer’s body camera was apparently only turned on after the crash happened (it’s turned on when audio kicks in; the camera then saves the two prior minutes of video). That may violate the MPD’s policy, which states that body cameras must be activated for vehicle or on-foot pursuits.

“We don’t know why the officers were trying to make an attempt of a stop in that particular case,” said Newsham on Thursday, “The one thing that I can do for that family, and the city can do for that family, is to ensure that a full thorough and proper investigation is conducted. And if there is wrongdoing, that folks be held accountable.”

Newsham said the investigation will first be reviewed by the U.S. Attorney’s office, then turned back over to MPD for an administrative investigation.

Bowser identified the officer driving the police vehicle as Terence Sutton. Sutton was also involved in an incident that is at the center of a lawsuit alleging a sexually abusive and unconstitutional search, though he was not a defendant in the suit.

The video appears to show Sutton exit the cruiser and yell “Karon,” perhaps indicating he knew Hylton-Brown by sight and had prior interactions with the 20-year-old.

The four officers in the vehicle have been put on leave, according to the Washington Post. Their police powers have been revoked while the investigation is ongoing.

“If the city of D.C. had prevented these cops from doing what they did, chasing any child or the things that they are doing … it would prevent it from happening again,” Karen Hylton, Karon’s mother, told DCist/WAMU on Thursday.

She also said that her other son was the subject of a police chase with Officer Sutton years ago which she says resulted in him breaking his leg.

On Tuesday and Wednesday night, protesters gathered in front of the Fourth District police station, demanding accountability for Hylton-Brown’s death. On Wednesday night, about 50 protesters marched to the Fourth District precinct police station. Soon, tensions rose. Water bottles were thrown, fireworks were set off, and the crowd swelled to about 100. Approximately, 50 police officers surrounded the crowd, blocking Georgia Avenue and nearby side streets.

Many were there to mourn and to express their grief over Hylton-Brown’s death.

Reggie (who did not give his last name) was at the scene of the crash when it occurred. He was a friend of Hylton-Brown. “I held him by myself,” he told DCist/WAMU on Wednesday night, “They telling everybody get back, he holdin my hand, I’m telling him fight. He’s squeezing my hand so I know he hear me … That’s my brother, right hand since elementary school.”

This story was updated to reflect that DCist spoke with Karen Hylton on Thursday, to include more details about the release of police body camera footage, and to clarify the nature of the officer’s involvement in the lawsuit. WAMU/DCist also updated this story to use Karon Hylton-Brown’s hyphenated last name at the request of his sister.

Previously:

Karon Hylton Vigil Turns Into Second Night Of Protests Outside Fourth District Police Station

Family, Friends Of Karon Hylton Demand Police Accountability In Protest After His Death