Strange Shooting In Nevada Prison

From the Las Vegas Sun:
A Nevada prison inmate was handcuffed when was shot and killed by a guard last November, according to a lawyer who said Wednesday that her client was wounded in the same shooting but survived.

Carlos Manuel Perez Jr. was slain with his hands cuffed behind his back, attorney Alexis Plunkett said. Inmate Andrew Jay Arevalo was also handcuffed and "miraculously survived three shotgun blasts to the face," Plunkett said.

"This is what I clearly consider to be an excessive use of force," she said in an email to The Associated Press. She said she represents Arevalo, not Perez, and plans to sue the guard, prison officials and the state.
"This is a terribly tragic and completely unnecessary shooting," Plunkett said.
Clark County Coroner Michael Murphy said Wednesday that he ruled Perez's death a homicide from multiple gunshot wounds to the head, neck, chest and arms.
Murphy noted his ruling meant Perez, 28, died at the hands of another person. It didn't establish fault.
Nevada prisons chief Greg Cox said in a statement issued after the coroner's ruling became public that Arevalo and Perez were fighting when a guard at High Desert State Prison opened fire.
Policy and procedure were followed in contacting the coroner, Las Vegas police and the prisons inspector general, Cox said.
The Department of Corrections director didn't mention handcuffs and didn't identify the guard. But he said the shooter was one of three correctional officers who remain on administrative leave pending completion of a Nevada Department of Investigations report and a review by the state attorney general's office.
Patty Cafferata, spokeswoman for state Attorney General Adam Laxalt, said the case will be evaluated and appropriate action will be taken. Laxalt's office also could be called on to defend the state in wrongful-death and excessive-force lawsuits.
A spokeswoman for Gov. Brian Sandoval referred questions about the case to Cox.
Perez and Arevalo were being housed separately in a disciplinary wing where inmates are handcuffed behind their backs when they are outside their cells, and no more than one inmate is usually allowed out of a cell at the same time, Plunkett said.  http://www.lasvegassun.com/news/2015/mar/25/fatal-shooting-prison-inmate-sparks-state-investig/
First, anything a defense attorney says cannot be trusted, because, for the most part, attorneys lie.
However, since this incident happened in November, about 4 months ago, why are we just hearing about this now?
Can we say "Cover up, Governor Sandoval"?