Through tears, Whitson recalled time spent with Stavik. She talked about a time when the sisters made up an extreme ice-skating sport on a sledding hill.
She asked the judge to consider the years of pain Bass' actions created for her and her family.
Bridget Whitson, Stavik's step sister, gave a victim impact statement prior to Olson handing down his sentence.
Whitson told the judge Stavik's murder had a physical and emotional impact on her and her family.