German police escorts students back to the Albert-Einstein-High School in Sankt Augustin, western Germany, Monday, June 11, 2009. The students returned to their classrooms from a gym, where they were temporary evacuated after an alarm. Police are searching for a 16-year-old girl they suspect of stabbing another girl Monday at the Albert Einstein high school in Sankt Augustin, near Bonn. AP Photo logo AP Photo 7 months ago

German police escorts students back to the Albert-Einstein-High School in Sankt Augustin, western Germany, Monday, June 11, 2009. The students returned to their classrooms from a gym, where they were temporary evacuated after an alarm. Police are searching for a 16-year-old girl they suspect of stabbing another girl Monday at the Albert Einstein high school in Sankt Augustin, near Bonn.