Does the circumstance of an "opportunity" mean she is no longer under immediate threat of death and therefore cannot follow through? >>>
PRECISELY.
My analysis is NOT "silly," that is the law.
Then the law does prohibit use of deadly force as self-defense for anyone, because any opportunity of having the upperhand and winning freedom from attack is negated by your flawed definition of immediate threat of death.
Sorry, but self-defense laws do not prohibit self-defense. They protect it.
The law in Nevada regarding self defense, Justice of the Peace.
http://www.leg.state.nv.us/NRS/Search/nrsquery.cfm
NRS 200.200 Killing in self-defense. If a person kills another in self-defense, it must appear that:
1. The danger was so urgent and pressing that, in order to save his own life, or to prevent his receiving great bodily harm, the killing of the other was absolutely necessary; and
2. The person killed was the assailant, or that the slayer had really, and in good faith, endeavored to decline any further struggle before the mortal blow was given.
[1911 C&P § 137; RL § 6402; NCL § 10084]
NRS 4.010 Qualifications of justice of the peace.
1. A person shall not be a candidate for or be eligible to the office of justice of the peace unless he is a qualified elector and has never been removed or retired from any judicial office by the Commission on Judicial Discipline. For the purposes of this subsection, a person shall not be ineligible to be a candidate for the office of justice of the peace if a decision to remove or retire him from a judicial office is pending appeal before the Supreme Court or has been overturned by the Supreme Court.
2. A justice of the peace must have a high school diploma or its equivalent as determined by the State Board of Education and:
(a) In a county whose population is 400,000 or more, a justice of the peace in a township whose population is 100,000 or more must be an attorney who is licensed and admitted to practice law in the courts of this state.
(b) In a county whose population is less than 400,000, a justice of the peace in a township whose population is 250,000 or more must be an attorney who is licensed and admitted to practice law in the courts of this state.
3. Subsection 2 does not apply to any person who held the office of justice of the peace on June 30, 1999.
[Part 2:108:1866; A 1953, 711; 1955, 459]—(NRS A 1987, 438; 1999, 94, 1347)