Former police officer Derek Chauvin is on trial in Minneapolis, charged with the murder of George Floyd in May 2020, when Chauvin was an officer. Charging decisions are made by district attorneys, and San Francisco District Attorney Chesa Boudin says if the Minneapolis incident had occurred locally, he would have brought criminal charges against Chauvin. He also discusses recent cases in which local law enforcement officers have killed or seriously injured people and why he did or did not bring criminal charges against those officers.