Nation Kyle Rittenhouse will argue self-defense. Experts say proving the argument to a jury isn’t easy. October 31, 2021Bruce Vielmetti, Milwaukee Journal SentinelComments Off on Kyle Rittenhouse will argue self-defense. Experts say proving the argument to a jury isn’t easy. As the trial starts Monday, Kyle Rittenhouse's team will turn on the claim of self-defense, which experts say can be more complicated than it sounds.