Your wrong cajun and before you shoot and kill someone you should familiarize yourself with the law completely. There are several considerations involved, such as "duty to retreat" being one of them . . .
Here is a simplistic overview of those considerations;
In general, one (sometimes more) of a variety of conditions must be met before a person can legally use the Castle Doctrine;
An intruder must be making (or have made) an attempt to unlawfully and/or forcibly enter an occupied home, business or car.
The intruder must be acting illegally—e.g. the Castle Doctrine does not give the right to attack officers of the law acting in the course of their legal duties.
The occupant(s) of the home must reasonably believe that the intruder intends to inflict serious bodily harm or death upon an occupant of the home.
The occupant(s) of the home must reasonably believe that the intruder intends to commit some other felony, such as arson or burglary.
The occupant(s) of the home must not have provoked or instigated an intrusion, or provoked or instigated an intruder to threaten or use deadly force.
The occupant(s) of the home may be required to attempt to exit the house or otherwise retreat (this is called the "Duty to retreat" and most self-defense statutes referred to as examples of "Castle Doctrine" expressly state that the homeowner has no such duty).
http://en.wikipedia.org/wiki/Castle_Doctrine_in_the_United_States
JMO
