FERGUSON, MO - AUGUST 30: Members of the Ferguson Police department wear body cameras during a rally August 30, 2014 in Ferguson, Missouri.  Michael Brown, an 18-year-old unarmed teenager, was shot and killed by Ferguson Police Officer Darren Wilson on August 9. His death caused several days of violent protests along with rioting and looting in Ferguson. (Photo by Aaron P. Bernstein/Getty Images)