The video will be anti-climatic. It was about 10 to 15 minutes before the final confrontation which video and testimony show was all Rosenbaum initiated.
The video could be a huge boost for the defense on a couple grounds"
1. if it was the action of Kyle with the fire extinguisher that is what the prosecution is arguing provoked the confrontation, it destroys the argument that the fight was started because of Kyle's illegal activity, the underage possession of a fire arm. Which illiminates the provision Bigbottom suggested will be the prosecution's approach.
2. It may show Rosenbaum with the chain still in his
hand. If that is the case, and Rittenhouse saw that, it would make this case laughable, as any human on the planet would be scared for their life if someone who was chasing you, and you reasonably believed was carrying a deadly object.