Governor Jay Nixon had declared a state of emergency and a curfew starting at midnight Saturday, after looting and violence overnight Friday to Saturday. But one person was shot and seven people were arrested as protesters and looters defied the order to stay inside after midnight.Images posted on Twitter showed vandals smashing the windows of a McDonald's restaurant. "#Ferguson very tense at command center tear gas fired search for people under way," wrote St Louis Post-Dispatch reporter David Carson on Twitter.