The video shows the boy's body lying on one side of a fence, with his pants still dangling from its teeth.
According to a police statement released after the shooting, the teen had been inside a car matching the description of one involved in an earlier shooting Monday. When officers tried to pull the car over, Loury fled and a chase ensued, culminating in the "armed confrontation" that led to his death.
First Deputy Superintendent John Escalante later said that Loury had turned and pointed a gun at the officer who was chasing him, and that police later found a gun at the scene.
Those who knew Pierre said police's version of the incident does not sound like the teen they know, though several photos posted to his Facebook page show the teen posing with what appears to be a gun.
The shooting is being investigated by the Independent Police Review Authority, police said.
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