A former officer in communist East Germany’s notorious Ministry of State Security, or Stasi, went on trial for murder on Thursday over the 1974 fatal shooting of a Polish man at Berlin’s Friedrichstrasse train station. The man from the eastern city of Leipzig, a former Stasi lieutenant who is now 80 years old, stands accused by prosecutors of having killed 38-year-old Czesław Kukuczka “with a targeted shot to the back from a hiding place” as he crossed the border to West Berlin on March 29, 1974, according to the indictment. At the time of the crime, the German officer is said to have belonged…