Leopold v. Levin, 259 N.E.2d 250 (Ill. Sup. Ct. 1970).
The film, which is excellent (as is the roman à clef on which it's based by Meyer Levin) featuring Orson Welles reading Clarence Darrow's actual majestic peroration, can be watched in full here:
www.youtube.com/watch?v=F4bf...
youtube.com
Compulsion (1959) | Classic Movie Full HD | Bradford Dillman, Dean Stockwell, Orson Welles
YouTube video by CINÉMOI