Word of caution.
This may or may not be true. Rumors fly, by definition, about secretive groups.
I certainly would not put it past Lil Kim, though.
Spectacular cruelty against the inner circle often doesn’t end well. Tends to create an incentive for them to kill Dear Leader before he kills them. Kim just doesn’t look like someone capable of keeping the reigns for long in such turbulent waters. (To thoroughly scramble a metaphor.)
Stalin is an exception to the general rule of it being a bad idea to make a habit of killing the inner circle.
He killed them so fast they couldn't keep up.