Friends and colleagues of Minnesota civil rights pioneer Nellie Stone Johnson are mourning her death and remembering her lifetime of activism. Johnson, who died Tuesday at the age of 96, spent the majority of her life fighting for social causes. She especially focused on the rights of labor unions, African Americans and women. Johnson was involved in many struggles and had many accomplishments. Those who knew her say that's a testament to her passion for equality. MPR's Brandt Williams reports.