Final answer:
Bruno Richard Hauptmann claimed that the ransom money found in his possession was given to him by a friend named Isidor Fisch, who had died before Hauptmann's trial for the Lindbergh kidnapping.
Step-by-step explanation:
The question refers to the infamous Lindbergh kidnapping case. Bruno Richard Hauptmann was accused of the kidnapping and murder of Charles Lindbergh Jr., the son of famous aviators Charles Lindbergh and Anne Morrow Lindbergh. When questioned about the ransom money that was found in his possession, Hauptmann claimed that the money was given to him by a friend named Isidor Fisch. Fisch had since returned to Germany and died, and so he could not be questioned or provide any verification of Hauptmann's claims. The discovery of ransom bills in Hauptmann's possession was one of the critical pieces of evidence used against him in his trial.