Buried and briefly mentioned within a federal lawsuit filed this month is a new theory on a 16-year-old question: Why was Camille Arfmann killed? Arfmann stepped off a school bus in Oskaloosa on Nov. 5, 1999, and was found dead less than three days later. The 14-year-old had been shot four times and buried beneath garbage in the northern outskirts of the small Jefferson County town.