Dear Ms. Ross,
Thank you for posting your request on History Hub!
Because the case was tried prior to the passage of the Federal Kidnapping Act, kidnapping cases would have been tried in state rather than federal courts. We suggest contacting the Clerk of the Circuit Court of Cook County for information regarding historic court records for Cook County, Illinois. Also, the Chicago Public Library may be able to assist you with locating additional newspaper articles concerning this case.
We hope this is helpful. Best of luck with your research!