"The Zebra murders comprised 15 killings — 13 by firearms and two by machete — all said to be motivated by an extremist interpretation of Nation of Islam teachings that white people were “devils” and deserving of violence. The randomness of the killings horrified San Francisco residents and inspired copycat crimes, including a 2007 killing by members of Your Black Muslim Bakery, who were also behind the murder of Oakland journalist Chauncey Bailey."
https://vault.fbi.gov/Wallace%20Fard%20Muhammed/Wallace%20Fard%20Muhammed%20Part%207%20of%207
(Nation of Islam - FBI files)
"But the potential dangerousness and the primitive instincts of some of his followers became evident on November 21, 1932, with an act of human sacrifice which rocked the populace of Detroit.
"Cult member Robert Harris induced member John J. Smith to present himself as a human sacrifice so that he might become "The Saviour of the World" Harris plunged a knife into Smith's heart as he lay prone on an improvised altar."
Literally incredible!