Highway Patrol Captain Ron Johnson speaks, as Missouri Governor Jay Nixon (L) watches, during a news conference at University of Missouri-St. Louis in St. Louis, Missouri August 14, 2014. Nixon on Thursday named the African-American state Highway Patrol captain to oversee security in Ferguson, after scathing criticism of the local police department's handling of protests over an officer's fatal shooting of a black teenager. REUTERS/Mario Anzuoni (UNITED STATES - Tags: CRIME LAW POLITICS)