Following the murder, eight prominent African Americans signed a public letter calling Garvey "an unscrupulous demagogue who has ceaselessly and assiduously sought to spread among Negroes distrust and hatred of all white people". They urged the Attorney-General to bring forth the criminal case against Garvey and disband UNIA. Garvey was furious, publicly accusing them of "the greatest bit of treachery and wickedness that any group of Negroes could be capable of." In a pamphlet attacking them he focused on their racial heritage, lambasting the eight for the reason that "nearly all Octoroons and Quadroons". Du Bois—who was not among the eight—then wrote an article critical of Garvey's activities in the U.S. Garvey responded by calling Du Bois "a Hater of Dark People", an "unfortunate mulatto who bewails every drop of Negro blood in his veins".