The final moments of 24-year-old Anthony Garner's life were captured by a surveillance camera stationed above the Utica street where he died, chased by three men, attacked and fatally shot. Tuesday, jurors in Oneida County Court got a look at that video and heard how the man accused of his murder, Marshall Jackson, was apprehended just feet from the crime scene. Our Sarah Blazonis has details.

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UTICA, N.Y. -- A surveillance video shows how Anthony Garner's life was brought to an end in just minutes. Police say it shows three men chase Garner, knock him to the ground, assault him, then fired several shots, including one to the head.

Utica Police officers testified in Oneida County Court Tuesday they were patrolling the area when they heard gunfire and went to investigate.

"As I was focused east on James Street, I saw a black male come around the corner of the M&M Deli, and in his right hand he had a black handgun," said George DeAngelo of the UPD's patrol division.

The man, they say, was Marshall Jackson. The handgun was in the firing position.

Jackson is now charged with second degree murder in Garner's death and his defense attorney is focusing on the fact that that gun wasn't the only one found at the scene.

Aside from the .22 caliber Walther handgun police say Jackson surrendered, another .22, this one a Ruger, was found in a driveway nearby. One officer said he also put out an alert on a man standing near Garner's body after Jackson was apprehended.

"As I continue to go down towards the body, I continue to give out the direction of which way he was going and his description," said DeAngelo.

But police say that man disappeared into a crowd of onlookers.

A forensic pathologist testified while Jackson was shot several times, the only fatal wounds were those to his head and one to his back. The doctor also noted another wound that was caused by a larger caliber bullet and told the defense that given this and an unidentifiable fragment at the scene, it's possible up to four guns fired on Garner.

But since both fatal wounds came from .22 caliber bullets, he could not tell which gun they had come from or which shot had been fired first.