police department in 2010 and he served a tour in iraq. he was the best man at his brother's wedding just back in june and his father died in july. this is the third memphis officer to be fatally shot in just over four years. >> we've been here before. this is my third time in the four years that i've been the director. and it doesn't get any easier. this is a very difficult time not only for me as director but for all of the officers you see standing behind me and a difficult time for our city as well. >> this tragedy is evidence there are quote so many guns on the street in the wrong hands. >> and the men and women in blue have certain rules of engagement that they have to follow. but at any given minute in a 24-hour day, they're dealing with folks who have no rules of engagement. >> again we do not know if this person in custody shooter, if