The panorama that opens this film was shot on the day that Czolgosz was actually executed.
The first depiction of an electric chair execution on film, and more graphic than similar scenes in 1930s Hollywood crime dramas.
Director Edwin S. Porter was a trained electrician, so the recreation of Czolgosz's death would've been relevant to his interests. He would later shoot the notorious actuality film Electrocuting an Elephant (1903).
The film depicts Czolgosz's execution as quick, clean and efficient. In reality it took nearly three minutes of electrocution to kill him.