Given the question: Generate a question that has the following answer: As a teenager for the following movie plot: In 1941, an eight-year-old Hannibal Lecter lives in Lecter Castle in Lithuania. Hitler's invasion of the Soviet Union turns the Baltic region into part of the bloodiest front line of World War II. Lecter, his younger sister Mischa, and their parents travel to the family's hunting lodge in the woods to elude the advancing German troops. After three years, the Nazis are finally driven out of the countries soon to be occupied by the Soviet Union. During their retreat, however, they destroy a Soviet tank that had stopped at the Lecter family's lodge looking for water. The explosion kills everyone but Lecter and Mischa. They survive in the cottage until five former Lithuanian militiamen, led by a Nazi collaborator named Vladis Grutas, storm and loot it. Finding no other food in the bitterly cold Baltic winter, the men look menacingly at Lecter and Mischa. By 1949, Lecter Castle has been turned into a Soviet orphanage and is ironically housing the interned orphan Hannibal Lecter. After dealing violently with a bully, Lecter escapes from the castle orphanage to Paris to live with his widowed aunt, the Lady Murasaki. While in France, Lecter flourishes as a student. He commits his first murder as a teenager, killing a local butcher who insults his aunt. He is suspected of the murder by Inspector Popil, a French detective who also lost his family in the war. Thanks in part to his aunt's intervention, Lecter escapes responsibility for the crime. Eventually, Lecter becomes the youngest person ever admitted to medical school in France. He works in Paris, where he is given a job preparing cadavers. One day, Lecter witnesses a condemned war criminal receiving a sodium thiopental injection, allowing him to recall details about his war crimes. Consequently, in an attempt to recall the names of those responsible for his sister's death, Lecter injects himself with the solution. His subsequent flashback reveals to the viewers the men who had killed Mischa, had also cannibalized her as well. Lecter returns to Lithuania in search...
The answer is:
When did Hannibal Lecter end up committing his first murder?