A diabetes expert testified for the defense today at the felony manslaughter trial of Congressman Bill Janklow. The former South Dakota governor is alleged to have run a stop sign at high speed last August, into the path of an on-coming motorcycle. The motorcycle's rider, Randy Scott, died at the scene. Janklow's attorneys are trying to show Janklow, who is a diabetic suffered a sharp drop in blood sugar just before the crash.