KENOSHA, Wis.—The trial of Kyle Rittenhouse opened Monday with the challenging task of seating jurors who haven’t already made up their minds about the young aspiring police officer who shot two people to death and wounded a third during a night of anti-racism protests in Kenosha last year. Rittenhouse was 17 when he made the short trip from his home in Illinois, just across the Wisconsin state line, during unrest that broke out in August 2020 after a white Kenosha police officer shot Jacob Blake, a Black man. Rittenhouse, now 18, faces life in prison if convicted of first-degree homicide, one of several charges against him. His lawyers have argued he fired in self-defense. Judge Bruce Schroeder, who has experience presiding over high-profile trials, told attorneys he thinks picking the jury from 150 prospective jurors can be accomplished in a day. Jury selection got off to a slow start Monday …