The leader of Nation of Islam in 60s-70s was Elijah Muhammad. The current leader is named Louis Farrakhan
However, we should know that Nation od Islam (NOI) is quite different bthan the main stream Islam and followers of NOI are not considered to basic principles of Islam and Quran teachings as instructed by prophet Muhammad. Refer to related questions below.
Allah
Islam is a religion not a spiritual leader. Islam is not dead.
Our beloved Holy Prophet Hazrat Muhammad (May peace and blessings of Allah Karim be upon him) is the spiritual leader of Islam. All the Prophets (May peace and blessings of Allah Karim be upon them) had been the spiritual leaders of Islam during their own time.
In the early days of the Nation of Islam, leaders taught that dark-skinned people were made by God, but the white people were made by a mad scientist. In recent years, they've tended to soft-peddle this aspect of their faith. __________________________________________________________ It must be recognized that no relation between Nation of Islam (NOI) and main stream Islam. True Islam forbids racism and/or discrimination. Refer to question below for details.
Nation of Islam was created in 1930.
As any God religion, the religious leaders of Islam are good and knowledgeable.
He didn't leave the nation of Islam
The spiritual leaders are not necessarily the same as religious leaders. Therefore the spiritual leaders are all those individuals throughout the world who are filled with spirituality, righteousness and piety. All of the human rights, animal and environmental protection activists are spirited/spiritual leaders. They are living instruments of divinity, which they freely share with all of humanity.
Makkah
Tauhid is the extremely believing and spiritual belief in Islam.
Islam.
The Nation of Islam is controversial because it is a racist (anti-White), anti-Semitic, homophobic organization. Note, however, that Nation of Islam is distinct from Sunni, Shiite, and Ibadi Islam. Read more about the Nation of Islam at the Related Link below.
No, Nation of Islam is quite different than true Islam. See related question below for more information.