The shootings last week at the University of Alabama at Huntsville, which left three faculty members dead and two more professors and a department assistant wounded, has transfixed the academic world. Amy Bishop, an assistant professor of biology at the university, was arrested at the scene and has been charged with murder and attempted murder. What role did the stresses of the academic life, particularly the denial of her bid for tenure, play in triggering the attack? Was race a factor? The availability of guns on campus? How universities handle mental illness? Here is what others have to say.