It does not matter if he lunges at you, if he has a weapon, if there is report of violence, if there is a history of criminal activity. When one person sees another person we should accept the differences and find the common interests. It does not matter if the other person has a weapon or is bigger than us. It matters that we can live without fear and be able to confront violence with a calm and well mannered demeanor.
The people carrying out these killings take an oath to serve and protect and color nor beliefs are to play a role in who is protected and served. The people who choose to go into a line of work where they become a servant to ALL people should understand their safety is in jeopardy, but they should equally understand that other's lives are in their hands and they must uphold all respect to protect even the people that may do harm. Officers should be trained to shoot as a last resort and NEVER to shoot to kill.