Did accused murderer Eddie Ray Routh know what he did was wrong?

On Friday, the prosecution in the “American Sniper” trial challenged the defense’s claim that Eddie Ray Routh did not know right from wrong when he opened fire on Chris Kyle, as the trial’s closing arguments are expected next week. NBC’s Jacob Rascon reports.

This article was originally published Feb. 21, 2015 at 9:58 a.m. ET.