And you cited an article referring to the Castle Doctrine not Duty to Retreat.
However, from the case I linked to above:
"At the close of trial, the court gave a series of jury instructions that were drawn from Uniform Criminal Jury Instructions:
“A person is justified in using physical force upon another person to defend himself from what he reasonably believes to be the use or imminent use of unlawful physical force. In defending, a person may only use that degree of force which he reasonably believes to be necessary."
(It then goes onto talk about deadly force as well)
No duty to retreat. Physical force, not deadly force. No duty to retreat.