St. Louis city prosecutors charged Dorian Johnson, 23, with resisting arrest or interfering with a lawful stop or detention, one day after St. Louis police arrested him with two other people, including his younger brother, Demonte Johnson. The criminal complaint alleges Johnson tried to hinder his brother’s arrest “by using or threatening the use of violence, physical force or physical interference.”Each brother’s bond was set Thursday at $1,000 cash-only. It was not immediately clear whether they had posted bond.Dorian Johnson was a prominent witness of the shooting death in August of Brown, a black, unarmed 18-year-old who was killed by white Ferguson officer Darren Wilson during a confrontation in a street. Brown’s death led to at times violent protests in Ferguson and other U.S. cities, spawning a national “Black Lives Matter” movement seeking changes in how police deal with minorities.A St. Louis County grand jury and the U.S. Justice Department declined to charge Wilson, who later resigned. But the Justice Department later released a scathing report that cited racial bias and racial profiling in Ferguson policing and in a profit-driven municipal court system that frequently targeted blacks.