Can a defendant use deadly force to repel a non-lethal attack?

younger than defendant. Defendant was fearful because he was older and getting tired. It is well established that "any right of self-defense is limited to the use of such force as is reasonable under the circumstances. [Citation.] The right of self-defense [does] not provide defendant with any justification or excuse for using deadly force to repel a nonlethal attack." (People v. Pinholster (1992) 1 Cal.4th 865, 966, overruled in part on other grounds as stated in People v. Williams (2010) 49 Cal.4th 405, 459.)