Two Albuquerque, New Mexico, police officers are facing murder charges for the shooting death of a homeless man last year.

William La Jeunesse reported on "Happening Now" that this police shooting differs from other controversial cases - like Ferguson, Missouri - because it was captured from start to finish on an officer's helmet camera.

The prosecutor is also not using a secret grand jury.

James Boyd, 38, a mentally ill homeless man, was camping illegally in the hills above Albuquerque when he was confronted by police.

During a standoff, police say he refused to drop a knife. The helmet cam video, however, appears to show Boyd surrender. When he begins to run, police open fire.

On Monday, Bernalillo County District Attorney Kari Brandenburg filed murder charges against SWAT team member Dominique Perez and former detective Keith Sandy.

"What makes this case criminal are some of the facts that will come out at the [preliminary hearing]," Brandenburg said at a press conference.

"I don't want to get into the facts. I don't want to do anything that would jeopardize the integrity of this case."

Despite Boyd's death and 26 other fatal police shootings in Albuquerque in the past four years, police say Perez and Sandy followed policy.

During the preliminary hearing, a judge will determine if there is enough evidence for a trial. The possible charges in this case range from first-degree murder, which could carry a life sentence, to manslaughter.

This is the first time an Albuquerque cop has been charged for shooting someone in the line of duty, La Jeunesse noted.

Watch more above.