Police in Denver have launched a homicide investigation after one person was shot dead at the site of the duelling right-wing 'Patriot Muster' rally and a Black Lives Matter protest. Two suspects have been apprehended.
Footage have emerged on social media purporting to show the moment a shooter fired his gun at the victim. Right before the single shot rang out, a burst of orange substance, apparently mace, can bee seen rising from the scene.
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