The mass-serial-killer and cannibal Charles Taylor (cannibals such as his son, his generals, his entire Liberian army) were members of the Poro Society, an ancient West African cult of
demon-worshippers, Charles Taylor believed that eating the organs of his enemies
gave him their strength.

Cannibalism religions are very popular in African nations because the black populace are genetically-psychopathic (cannot feel empathy for anyone, prone to spontaneous irrational violence, lack intellect to sustain a society).  I figure that these “Witches” were just eating the people that the other black cannibals of a differing black-psychopathic cannibalistic-delusion-religion wanted to eat.  Just two gangs of rabid bloodthirsty fake humans killing each other over a choice piece of fresh bloody human victim flesh.

There’s plenty more names for African mass-cannibalism religions, here are just a few.
GOOGLE [ Muti Murders ]
GOOGLE [ Poro Society ] (adding in the word “Taylor” will get you the unsanitized truths)

GOOGLE[ "Quixilla Laws" ] (must have quotes)
Imbangala maintained their numbers by capturing adolescents and
forcing them to serve in their cannibal army. Captives were often forced
to kill and eat people, consumed considerable amounts of alcohol,
& could not be admitted to full membership until they had killed an
enemy in combat. Cannibalism, ritual human sacrifice and torture were
the Imbangala “quixilla laws”. Later known as the African nation of
Angola.GOOGLE [ Gboyo ]Under the practice known as ‘Gboyo’, there is a
belief that human body parts extracted and eaten while the victim is
still alive bestows power and affluence.

Charles Taylor and his militia brought international prominence to Gboyo
practices during Liberia’s brutal civil war in the 1990s.

“Power is in the blood, and most people use the blood. The medicine men
would help you do that to extract the power. So the people in town
were seen as prey, to be taken and carried away,” Mawolo says.