Sarah Aaronsohn was born on January 5, 1890 in Zikhron Ya’akov which at the time was part of Ottoman Syria. Aaronsohn, her sister Rivka Aaronsohn, and her brothers Aaron Aaronsohn and Alexander Aaronsohn, with their friend Avshalom Feinberg formed and led the Nili spy organization. Aaronsohn oversaw operations in Palestine of the spy ring and passed information to British agents offshore. Sometimes she travelled widely through Ottoman territory collecting information useful to the British, and brought it directly to them in Egypt. Nili developed into the largest pro-British espionage network in the Middle East, with a network of about 40 spies.
In September 1917, the Ottomans intercepted her carrier pigeon carrying a message to the British and decrypted the Nili code. In October, the Ottomans surrounded Zichron Yaakov and arrested numerous people, including Aaronsohn. She endured four days of torture herself, but she gave no information. Before she was to be transferred to Damascus for further torture, she asked permission to return to her home in Zichron Yaakov to change her blood-stained clothes. While there, she managed to shoot herself with a pistol concealed under a tile in the bathroom; she died four days later.