Rittenhouse 11/16/21

As I write this, Kyle is weeping on the stand and giving his own testimony.  There seems to be a lot of videos of the incident which does show people rushing Kyle that his attorneys argue means he acted in self-defense, but what were his intentions?  If he showed up hoping to be able to shoot people, then they were acting in self-defense.  If he had no desire to kill people, why was he so casual and calm as he walked past police right after having done so?