When was the associate and cousin of  Michael X died  who co founded black nationalism and social change organization US?
Hakim Jamal Hakim Abdullah Jamal (March 28, 1931 – May 1, 1973) was the name adopted by African-American activist Allen Donaldson, who was a cousin of Malcolm X and later became an associate of Michael X. Jamal wrote "From the Dead Level", a memoir of his life and memories of Malcolm X.
Leon Jordan Leon Mercer Jordan (May 6, 1905, Kansas City, Missouri - July 15, 1970, Kansas City, Missouri) was an American police officer, politician and civil rights leader who was assassinated. He was "one of the most influential African Americans in Kansas City's history" and, at the time of his death, the "state’s most powerful black politician".