Moment Amazon worker tries to execute oblivious supervisor but gun jams, allowing him to dodge second attempt by inches... before deadly police chase ensues

An Amazon security guard tried to execute his supervisor at close range before his gun jammed and he fired again, allowing him to dodge the second attempt by inches.

Ali Hamsa Yusuf, 22, was caught on surveillance footage creeping up behind his boss before attempting to shoot him on May 12.

The trainee security guard then fled the warehouse in West Jefferson, Ohio, before engaging in a shootout with cops in which he was killed.

Heart-stopping footage from before his escape shows Yusuf saunter up behind his supervisor while he sits at his desk.

He scans around before positioning himself behind his boss who has his back to him and is engrossed with his computer screen.

An Amazon security guard tried to execute his supervisor at close range before his gun jammed

Ali Hamsa Yusuf, 22, was caught on surveillance footage creeping up behind his boss before attempting to shoot him on May 11

The trainee security guard then fled the warehouse in West Jefferson, Ohio , before engaging in a shootout with cops in which he was killed

The supervisor was miraculously unharmed and managed to call the cops to warn them about Yusuf

He then reaches into his waistband and pulls out his weapon, holding it behind the target's head with two hands.

He squeezes the trigger but the gun jams and Yusuf is seen lowering the firearm to fix it.

He then resets the weapon and fires again, this time sending a bullet towards the supervisor.

It narrowly misses him but causes him to get up and whirl around in alarm. 

Yusuf is then see sprinting away as his boss gets up and runs for cover. 

A camera from inside the warehouse captures the supervisor sprinting away. Yusuf appears to thinking about pursuing him before changing direction.

He is then seen nonchalantly strolling out of the building with the gun in hand.

He uses his lanyard to swipe out and exits through the parking lot. 

The supervisor, who was not injured, warned the police in a 911 call. 

Yusuf, an Amazon security guard trainee tried to kill his supervisor at close range before shooting a police officer in a dramatic shoutout that was caught on bodycam footage

Ali Hamsa Yusuf, 22, was fatally shot by police after he opened fire on an officer who was saved by his bulletproof vest

'He was my trainee,' the caller said on a 911 call. 'He shot at me twice, but he missed. He almost executed me. He is leaving the parking lot as we speak in a car.' 

The same caller used a radio device to warn the rest of the staff to evacuate the building. 

'Get out of the building now. There's an active shooting in the building,' he said. 'This is not a drill. There is an active shooting in the building.' 

There were more than 100 workers inside the building when the shooting occurred, officials said.

Smith said police responded and arrived within two minutes of receiving reports of an active shooter. 

Yusuf soon fled the building but was spotted later on Sunday in Columbus by Madison County authorities. Yusuf chased his supervisor for about 15 yards. 

An hour and a half later, officers found Yusuf in the area of Georgesville and Clime roads.

Franklin Township and Columbus police tried to stop his vehicle a short time later, and Yusuf then left the vehicle and began firing at a Columbus officer, who police said was hit by a bullet but was not seriously injured due to his bulletproof vest.

The Columbus officer, identified only as a four-year veteran of the force, was treated at the hospital for minor injuries and released later Sunday

The shooter was injured during the crossfire and taken to the hospital where he later died.

The Columbus officer, identified only as a four-year veteran of the force, was treated at the hospital for minor injuries and released later Sunday.

Yusuf was not supposed to have a gun while on duty, police said. 

He was a contracted security guard at the Amazon fulfillment center on State Route 29 who had been training for approximately two weeks 

It's also not yet known why he tried to shoot his supervisor. Yusuf also had no known criminal history, authorities added.