Michigan’s attorney general has reached out to the school district in which a shooting took place last week, offering assistance to authorities in their investigations. “Our attorneys and special agents are uniquely qualified to perform an investigation of this magnitude and are prepared to perform an extensive investigation and inquiry to answer the many questions the community has regarding this tragedy,” Michigan Attorney General Dana Nessel, a Democrat, said in a statement on Sunday. A student opened fire inside Oxford High School on Nov. 30, leaving four peers dead and seven others wounded. Authorities say 15-year-old Ethan Crumbley was the shooter, citing video footage and witnesses. Prosecutors say the boy displayed troubling behavior in the days leading up the shooting, including producing a drawing that appeared to show a person who was shot and the words “The thoughts won’t stop, help me.” They’ve blamed Ethan’s parents for failing to stop their …