The passenger in the truck that killed three girl scouts and their leader in Lake Hallie has been sentenced to three years in prison. John Stender was riding with Colten Treu when Treu drove into the group of girl scouts who were cleaning trash along a county highway three years ago. Jayna Kelly, Autumn Helgeson, Haylee Hickle, and her mother Sara Schneider were killed. Stender had been found guilty of helping Treu hide the truck the day of the crash. Investigators say Treu and Stender were high after huffing chemicals earlier in the day. Stender was taken into custody immediately after his sentencing Thursday to begin serving the prison term.