When LaShell Eikerenkoetter cast her vote for Wesley Bell in the St. Louis County Democratic primary on Tuesday, she took the spirit of Michael Brown with her to the ballot box. She had a sole purpose on Election Day: Get rid of Bob McCulloch, the veteran prosecutor who did not get an indictment against the white former Ferguson, Missouri, police officer who fatally shot the unarmed, black 18-year-old four years ago this week.