An incident in a store in Ferguson, Missouri August 9, 2014 is seen in these still images taken from a security camera and presented to the media during a news conference by the Ferguson Police Department on August 15, 2014. Authorities named Darren Wilson as the police officer who killed an unarmed black teenager in Ferguson, Missouri last weekend, saying the officer had a good record and the incident came in the aftermath of a robbery in which the teen was a suspect. Ferguson Police Chief Tom Jackson said there had been a report of a robbery of cigars in a convenience store in the area a few minutes before police officer Darren Wilson encountered Michael Brown walking down the street near an apartment complex. REUTERS/Ferguson Police Department/Handout via Reuters (UNITED STATES – Tags: CIVIL UNREST CRIME LAW) NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS