Please answer the following question: Facts: - native name lang: heb - native name: - death date: 20 may 2009 - allegiance: haganah -- 1940 -rrb- lehi -lrb- 1940 -- 1948 -rrb- -lrb- 1931 -- 1933 -rrb- irgun -lrb- 1933 - birth date: 15 july 1917 - serviceyears: 1931 -- 1948 - name: yehoshua zettler - birth place: kfar saba Based on these bullet points, write a short biography describing the life of yehoshua zettler .
A:
yehoshua zettler -lrb- july 15 , 1917 -- may 20 , 2009 ; last name also spelled as zeitler -rrb- was an israeli who served as the jerusalem commander of jewish paramilitary group lehi , often also called as '' the stern gang '' .he conceived and carried out the september 17 , 1948 , assassination of swedish count folke bernadotte , who was representing the united nations security council as a mediator in the aftermath of the 1948 arab -- israeli war .