>> right now in south bend indiana that's where the 20/20 presidential candidate pete buttigieg, an intense town hall going on. this is live. there is the mayor on the right. this town hall this afternoon coming one week after a white police officer in south bend shot and killed a 54-year-old black man. the mayor says he would send a letter to the justice department civil rights division asking for an independent investigation into the shooting. thethis prompted him to leave the campaign trail to attend to the issue back home. there's been tension ongoing between the african-american community and the police in south bend as you can see, it seems to be very passionate and heated meeting. the mayor has told the residents of the city he is intent on fixing any problems.