Two years after saving victims of the September 11 terrorist attacks, NY City police officer Detective John Walcott needed his own life saved. From the NY Post (HT Vital Signs):
Walcott, 43, who was stricken with leukemia in May 2003, had received an NYPD line-of-duty disability pension for his 9/11 rescue and recovery work.
But it was Olaf Gierszewski, now 38, a petty officer in the German Navy, who came to Walcott’s rescue in an unusual international stem-cell transplant.