He was born in Luck, Poland (now in the Ukraine) and. joined Betar, the Revisionist youth movement, at an early age. He immigrated to Palestine illegally in 1937 and worked with a Betar labor group in Rosh Pinnah. In April 1938 Ben-Yosef and two of his comrades, outraged by Arab terror attacks, made a retaliatory attack on an Arab bus on the Rosh Pinnah-Safed road. The attack failed and the three were arrested and tried before a British military court. Though none was hurt, Ben-Shlomo and one of his comrades were sentenced to death. His comrade's sentence was commuted to life imprisonment but Ben-Yosef was executed despite worldwide protests and appeals.

Bibliography:

Shelomoh ben Yosef: `e´srim ve-hamesh shanah le-`aliyato le-gardom: 30 Sivan 698-723.[Israel]. Pp. 16. ha-Va`adah le-tsiyun yom-ha-shanah ha-`esrim ve-hamishah le-`aliyato le-gardom shel Shelomoh ben Yosef, [1963?].

Links:

Shelomo Ben-Yosef - The History of Betar

Shelomo Ben-Yosef - Etzel