New video shows multiple angles of a single moment that ended the lives of 12 innocent people and the lone gunman at the Borderline Bar and Grill two years ago.
The Ventura County District Attorney releases the video Thursday as part of a public report, deeming the actions of the officers who responded to the mass shooting was justified.
The video includes various surveillance cameras, including a view of the shooter in the nightclub's office, a digital moving graphic to follow along and the sound from law enforcement radios.
"Officer Barret and Sgt. Helus performed the most difficult, demanding and emotionally challenging duty we can ever expect of a peace officer, to confront an active shooter in a dark building," Ventura County District Attorney Gregory Totten said. "This is the ultimately nightmarish scenario."
Ventura County Sheriff's Sgt. Ron Helus died that night, a victim of friendly fire as California Highway Patrol Officer Barrett fired his weapon toward the gunman.
This video shows Helus still firing his weapon, even while wounded on the ground. A year after the shooting, Helus' widow spoke exclusively to NBCLA about the bullet that killed her husband.
"It was not meant for him," said Karen Helus. "Was not meant for Ron at all. He was going in helping him."
She said she kept in touch with the CHP officer, who she hoped would free himself of any guilt of that night.
"I told him don't carry this because it wasn't intentional," she said.
"May we as a community never forget his courage and bravery," Totten said.
Today the DA says that had the gunman survived that night, he would have faced a long list of charges, including the murder of all 12 victims.
"Those crimes include 12 counts of first degree murder with special circumstance of multiple murder," Totten said. "That circumstance would have made Long eligible for the death penalty."