Hinckley decided to copy DeNiro's character in the movie. He began to stalk President Jimmy Carter. He was surprised at how easy it was to get close to the president—only one foot away at one event. He was arrested in October 1980 at Nashville International Airport for illegal possession of firearms. Even though Carter made a campaign stop there, the Federal Bureau of Investigation did not connect this arrest to the President and did not tell the United States Secret Service.