The family of a 25-year-old man who was shot and killed by a D.C. police officer last week is questioning the officer’s tactics and training after viewing the body camera video.

David Warren Childs, of Northeast D.C., was shot the night of Nov. 17 after police say he refused to obey the officer’s commands and appeared to reach for a firearm in his waistband. It happened near the Deanwood Metro station.

The Metropolitan Police Department (MPD) says officers spotted Childs with a gun in his waistband and gave chase.

The body-worn camera video released by police this week doesn’t show the initial interaction. It begins in the middle of a foot pursuit that ended outside an apartment building on 47th Place NE.

It’s very hard to tell from the video, but the officer — who had Childs at gunpoint standing between a fence and the building — was without backup and alone for one minute and 23 seconds before the officer opened fire.

The video shows the moment the officer cornered Childs and said, “I’m gonna shoot you.”

“Why wasn’t the matter de-escalated?” Childs’ cousin Da’jon Mason asked. “If it’s the law enforcement’s job to de-escalate matters, why wasn’t the situation de-escalated? If you had 10 to 15 officers out here, why was there no other officer present to assist in the matter to de-escalate the situation? Why did you continue to escalate the situation, threatening to continuously shoot someone when they are telling you, ‘Don’t shoot me’?”

As soon as Childs was cornered near the fence line, the officer apparently got on the radio and said, “One at gunpoint” and “behind the building.”

“The officer used great restraint, gave multiple commands, multiple commands asking the subject to please, to raise his hands and not to reach for the firearm, and for some reason the subject did not obey those commands and reached for his firearm,” Executive Assistant Police Chief Andre Wright said.

It’s difficult to see on the video, but police say Childs moved his left hand toward his waistband and that’s when the officer opened fire.

After the shooting, other officers arrived and began to render first aid to Childs.

Police say this is the weapon Childs had in his waistband.

“The point where he was saying, ‘You know what, OK, if this is how it’s going to go, then do it,’ when we are the same amount of distance that we are now in this conversation, you could have taken him down,” Mason said. “You didn’t have to keep the gun pointed at him. You could have holstered your weapon and proceeded to take him down. You could have tased him. You could have used OC [pepper] spray.”

D.C. police declined to comment on the family’s concerns and referred News4 to the statement the police department made when the body camera video was released.

MPD said in a Nov. 18 news release in part: “The involved members have been placed on administrative leave, pursuant to MPD policy.”

The Internal Affairs Bureau’s Force Investigations Team is investigating the shooting, according to MPD.

“The United States Attorney’s Office will independently review the facts and evidence in the case,” MPD said.