You will find quite a few newspaper articles on the case if you search for "Anna Forte" on Chronicling America (a free newspaper website from the Library of Congress.
A summary of the 1915 Illinois Supreme Court case is at https://cite.case.law/ill/269/505/
Dear Ms. DeVore,
Thank you for posting your request on History Hub!
We searched online and located People v. Forte, 269 Ill. 505 (1915) Oct. 27, 1915 · Illinois Supreme Court on Harvard Law School’s Caselaw Access Project. Please contact the Illinois State Archives for information about state court records. The Illinois Supreme Court Library also may be able to assist you with your research.
In regards to locating newspapers, the Library of Congress website Chronicling America provides information about accessing historic newspapers. The Illinois State Library and the Chicago Public Library may be able to assist you as well with locating back issues of area newspapers.
Additionally, there may be relevant newspaper articles on subscription newspaper databases.
We hope this information is helpful. Best of luck with your research!