Nevada is whats known as a stand your ground state. Nevada requires whats called a no duty to retreat before killing in self-defense only as long as the one who is fighting back: is not the original aggressor, has a right to be in the place where deadly force is used, and is not defined as engaging in any sort of criminal activity.
In Nevada in 2011, the state legislature passed new measures which removed a requirement to retreat in the face of a threatening situation. These “Stand Your Ground” statutes have been in effect since that time and about half the states have adopted similar legislation. Most recently, the Nevada Legislature in 2015, passed SB175 which became law in June 2015, and included the defense of an occupied motor vehicle to the legal list of defendable circumstances recognized by law, among other provisions.