You can contact two places that may have that St. Louis County, and Duluth history information.http://www.mndiscoverycenter.com/research/
The library staff specializes in assisting patrons with their genealogy/family history research. You may email them at email@example.com
or call them at (218) 254-1222.
Search the site using the spelling Waisanen.
The site has the document of John Waisanen's Hibbing, Minnesota arrest record.
But it's dated 1928, so maybe a different John Waisanen. I would email the email address before paying/ordering the record.
But they might also have other records, including the trial records.
Also, the St. Louis County Historical society might have information:
ST. LOUIS COUNTY HISTORICAL SOCIETY
506 West Michigan Street
Duluth, MN 55802-1505
Executive Director: JoAnne Coombe, 218-733-7581www.thehistorypeople.org/