Minutes later, Harry was saying, "...So after the chains exploded, and my stag-Patronus stabbed the Dementor in multiple places with its antlers, Lucius Malfoy fired an AK at me. Now, what normal person would cast the Killing Curse in front of sixty or seventy witnesses? Much less, what normal person would cast the Killing Curse in a courtroom? But I guess somehow Lucy thought he wouldn’t be punished for it."