The wounded President McKinley was taken to Milburn House, where Ida was waiting. His cabinet was informed of the shooting, and they rushed to Buffalo to join the president. Initially, however, it looked as though a crisis had been averted. The doctors were optimistic and President McKinley appeared to be on the mend. The Cabinet dispersed and Vice President Roosevelt headed for a long-planned camping trip in the Adirondacks.
The doctors had overlooked the earliest signs that the president’s wounds had become infected and on the morning of September 13, a week after the shooting, William McKinley’s health began a rapid decline. The doctors were confronted with the ugly reality that the president was dying. Gangrene had set in, and it was rapidly poisoning him. No drugs yet existed that could control such an infection. His pulse grew fainter all day, until around 5 p.m., when the president suffered a heart attack.