Video shows moment second St Louis man shot to death by police after race riots

Kajieme Powell can be seen pulling out a knife just seconds before he is gunned down by police in St Louis, Missouri

Shocking video has emerged of the moment a man was shot and killed by officers in the U.S. town where race riots have continued for nearly two weeks over a similar incident.Kajieme Powell, 25, was approached over an alleged theft of energy drinks and doughnuts when he was gunned down.
In the video Powell can be seen wandering around outside the shop near two cans that it is believed he took.
While he is pacing, he keeps his right hand in his jacket pocket.

When police arrive he backs up towards the store as officers approach with guns drawn.
He then removes his hand from his pocket revealing that he has a knife in his hand. He walks towards them shouting "shoot me now, kill me now" before the officers open fire and he drops to the ground.
The man filming then says: "They just killed him. Here we go again", referring to the shooting of Michael Brown which has led to 10 nights of protests.
It is believed that the death may have been 'suicide by cop'.
The two officers, who were placed on administrative leave pending an investigation, opened fire after the man refused repeated orders to drop his weapon, police said.

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Police officers arrest a demonstrator in Ferguson, Missouri

 Meanwhile, a St. Louis-area police officer was suspended indefinitely yesterday for pointing a semi-automatic assault rifle at a peaceful demonstrator.
The incident just before midnight on Tuesday punctuated the 11th straight night of racially charged demonstrations in the St Louis suburb of Ferguson, Missouri, since Brown, an unarmed 18-year-old, was slain by a white police officer.
No one was hurt in the gun-pointing confrontation, but the incident underscored what many have criticized as heavy-handed and unprofessional police tactics that have helped stoke continuing civil unrest.
According to an official account from the St. Louis County Police Department, an unnamed policeman from the neighboring community of St. Ann leveled his weapon at a Ferguson protester "after a verbal exchange," and that a superior county officer, a sergeant, quickly intervened.
The sergeant "immediately took action, forcing the officer to lower the weapon and escorting him away from the area," a statement from the county department said.
In video footage of the episode widely circulated on social media, the white officer in question, wide-eyed and agitated, is seen pointing his rifle at numerous demonstrators and members of the media.
At one point, he is heard yelling, "I will f***ing kill you, get back, get back," before the sergeant calmly steps in to defuse the situation, orders him to lower the weapon and leads him away from cameras.
"The unified command strongly feel these actions are inappropriate, and not indicative of the officers who have worked daily to keep the peace," the police statement said.
It said the officer in question had been relieved of duty and suspended indefinitely but gave no further details of any investigation or discipline he might face.