In 2001, several rapes in Contra Costa County believed to have been committed by the East Area Rapist were linked by DNA to the Smith, Harrington, Whithuhn, and Cruz murders.
Pada tahun 2001, beberapa kasus pemerkosaan di Contra Costa County yang diyakini bagian dari East Area Rapist diketahui berkaitan lewat DNA dengan kasus pembunuhan Smith, Harrington, Whithuhn, dan Cruz.