weighing a life sentence for 18-year-old rittenhouse, the jury deliberated for almost four full days before delivering the verdict. >> members of the jury, it is for you to determine whether the defendant is guilty or not guilty of each of the offenses. >> reporter: the jury ultimately had to answer one question. did rittenhouse kill two men and maim another as a form of vigilante justice or self-defense? the defense seized on the testimony of gaige grosskreutz. video shows rittenhouse shot and destroyed grosskreutz's bicep yet he gave the most compelling argument that rittenhouse was acting in self-defense. >> when you were standing three to five feet from him with your arms up in the air, he never fired, right? >> correct. >> it wasn't until you pointed your gun at him, advanced on him, that your gun -- now your hand is down pointed at him. and he fired, right? >> correct. >> reporter: we are now getting