BEMIDJI, Minn. — Random drug testing could come soon to Cass Lake-Bena and Forest Lake districts as parents and educators look for new ways to combat drug use by teens. The issue of drug use has dominated the headlines near Cass Lake in northwest Minnesota, where there were four separate homicides during two months this fall. Drugs are thought to have been a factor in some of those deaths. It was enough to prompt Dan Ninham, the Cass Lake-Bena High School basketball coach, to suggest random drug testing for all middle and high school students involved in athletics and other...