keeton presided over the 1988-1989 mail fraud and obstruction of justice trial of lyndon larouche and eleven associates, which ended with keeton declaring a mistrial. he also presided over the 1995 "lotus dev. corp. v. borland int'l, inc." trial involving the extent of software copyright, a case that later was decided by the supreme court. in 1984 keeton, along with older brother page as lead author, and professors dan dobbs and david owen, published the 5th edition of "prosser and keeton on torts". the book, based on william prosser's influential "prosser on torts" (1941), became a foundational text of tort law and has become frequently used as a law textbook and reference work for many law students, lawyers, and jurists.