As part of their Bur Oak series, University of Iowa Press has reissued Patricia L. Bryan and Tom Wolf’s Midnight Assassin: A Murder in America’s Heartland, the history of the Hossack murder case which Glaspell covered as a reporter and later used as the basis for Trifles.
For more information:
http://www.midnightassassin.com/
To order:
http://uipress.uiowa.edu/books/2007-fall/bryanmidass.html