Trace Gallagher reported some new information on last month's murder of an Arizona police officer.

New video from the officer's body camera - released after a FOIA request - shows the moment when the suspect suddenly pulled a handgun and opened fire. 

Flagstaff police officer Tyler Stewart, a 24-year-old rookie of the force, had responded to a domestic dispute.

After Stewart (below, left) arrived at the home of 28-year-old Robert William Smith (right), the deadly confrontation began.

Gallagher said most of the 14-minute video shows a casual conversation between the two, but the suspect did have his hand in his pocket. 

At one point, a concerned Stewart asked Smith if he had any weapons on him. 

Smith answered "no," saying his hands were just cold.

Stewart was about to leave, saying he had other calls to get to, but wanted to check one last time that Smith was not armed.

That's when Smith pulled out a .22 caliber handgun and shot the officer six times, including four shots to the head.

The suspect was then found dead of a self-inflicted gunshot.

(Note: the fatal shots are not shown in the video above. The full video can be seen, here.)

Gretchen Carlson said seeing this video should make everyone stop to think about the daily dangers faced by cops. 

She said "undoubtedly this Arizona case won't get the same amount of attention as the other [police] shootings recently, but maybe it should."

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One of Smith's roommates told police that Smith had been contemplating suicide, according to police reports.

Stewart had gone to Smith’s girlfriend’s home earlier, but the man who would later kill him was gone. The cop then went to Smith's home, where his roommate said Smith had fled, according to a police report. Records indicate that about an hour later, at 12.30 p.m., Smith called the Flagstaff Police Department and left a message for Stewart, who then went back to Smith’s home where the fatal encounter took place.

“This is an enormous tragedy for our department and the family of our officer,” Flagstaff Police Chief Kevin Treadway told AZ Central. “We are a very close-knit organization, and know that all members of the Flagstaff Police Department are grieving at this time.”

Release of the frightening footage raises questions about balancing the public's right to know against privacy concerns of police officers and their families, according to Levi Bolton Jr., executive director of the 14,000-member Arizona Police Association. On Wednesday, Bolton met with state lawmakers to discuss the cameras and how best to handle disclosure of footage that may show innocent bystanders, undercover police or informants or, as in Stewart's case, the final moments of an officer's life.

"We are currently crafting or looking at legislation that may very well discuss this," Bolton told reporters. "We acknowledge that the public and the media should have access to this information."