Justification based on duress and the justification of necessity discussion

In an essay of three (3) pages please: •In your introduction, define these two affirmative defense concepts: Excuses and Justification. •In the body of your report, discuss these two affirmative defenses. Justification based on duress and the justification of necessity. How are they similar and different? •When are these defenses used? Why? Thinking critically section: •In the body of Thinking Critically, Synopsize and discuss a recent news article involving a Stand Your Ground or A Castle Doctrine incident. Was deadly force used? If so what happened? •In your conclusion, what does Arizona law require for justification of self-defense? Based on your news article would the actions of your subject be justified or not based on Arizona law? •In your opinion should a citizen have to retreat before using deadly force?