WASHINGTON — For one night, all was well in Ferguson, Mo. After a change in police command, violent protests decrying the shooting death of unarmed 18-year-old Michael Brown at the hands of white police officer Darren Wilson suddenly gave way to peaceful demonstrations. A day later, Ferguson police, under pressure to disclose Wilson’s name, also revealed that Brown was suspected of stealing cigars from a local store before his deadly encounter with Wilson. That announcement was met with disbelief and …