Ferguson Cop: 'I Have A Clean Conscience'

 Darren Wilson who shot Michael Brown

The first time Darren Wilson ever fired his gun in his five-year career as a police officer was when he shot dead black unarmed teenager Michael Brown, the 28-year-old told ABC News in his first televised interview. The police officer said he has a clear conscience as he was doing his job correctly. 

The question is; is justice served?