Update:
I have been in contact with the Chicago PD, however, then have been unable to locate any missing person files for James Jones. Without more concrete information on the missing person report, I am afraid I am unable to move forward with any possible comparison. This would include when exactly the report was file, a case number, etc. If you are able to provide more concrete information from the family, I can then put them in touch with the detective from Chicago.
I will try to get in touch with the family. It might take me a while as it is a touchy subject with the family.