over the death of Michael Brown, an unarmed African-American teenager who was shot by police on Saturday. On Wednesday night, the city looked like a warzone as police fired tear gas, stun grenades and smoke bombs. Police arrested at least 10 people, including a St. Louis alderman and two journalists. But last night the mood was less tense after Missouri Gov. Jay Nixon put an African-American highway patrol captain, Ron Johnson, in charge of security in the town of Ferguson. Johnson marched with protesters and ordered the riot gear put away.