St. Louis County Police Chief Jon Belmar said the overnight presence of the Oath Keepers, wearing camouflage bulletproof vests and openly carrying rifles and pistols on West Florissant Avenue, the hub of marches and protests for the past several days, was "both unnecessary and inflammatory."
The St. Louis suburb was the focus of months of massive protests and sometimes violent unrest last summer after the killing of Brown by a white Ferguson police officer, which sparked a nationwide protest movement and a fierce debate over how police treat minorities.
But Missouri law allows anyone with a concealed carry permit to openly display a firearm anywhere in the state. John Karriman, a representative of the group who has taught at the Missouri Southern State University police academy and ran unsuccessfully as a Libertarian Party candidate for county sheriff in southwest Missouri, did not immediately respond to a cellphone message seeking comment. The group's membership coordinator referred an inquiry to founder Stewart Rhodes, who studied constitutional law at Yale University.