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EL CAJON, Calif. — Following an onslaught of demand that the images be make public, El Cajon police released a video clip showing an officer fatally shooting an unarmed Ugandan immigrant during a confrontation near the Parkway Plaza shopping center.

Police Chief Jeff Davis and District Attorney Bonnie Dumanis will lead an afternoon briefing during which they will disseminate the cellphone and surveillance-camera footage depicting the death of 38-year-old Alfred Olango.

Olango was mortally wounded Tuesday afternoon during a confrontation with officers behind a fast-food restaurant near the intersection of Interstate 8 and state Route 67.

The shooting sparked widespread protests on the streets of the East County city, with demonstrators insisting that Olango died at the hands of police because he was black.

On Thursday night, a demonstration at the site of the fatal encounter near the intersection of Interstate 8 and state Route 67 turned violent as protesters stopped vehicles, broke car windows and knocked a motorcycle rider to the ground.