 This is Minnesota Now. I'm Nina Moyni in for Kathy Wurzer. We're following new charges against a Minnesota state trooper who struck and killed 18-year-old Olivia Flores and injured five others in Rochester in May. As you heard Matt Sepik report a minute ago, trooper Shane Roper was following a vehicle for a, quote, petty traffic offense at 83 miles per hour in a 40-mile-per-hour zone without his lights or sirens activated. Flores was in another vehicle.