Mateusz Slodkowski/SOPA Images/LightRocket via Getty Images In a Saturday afternoon internal memo obtained by Business Insider, Fox News executives said the network condemns the "horrendous and deeply offensive" online activity of host Tucker Carlson's former top writer. CNN Business first reported on Friday that writer Blake Neff secretly posted racist, sexist, and homophobic messages for years under the pseudonym CharlesXII on the forum AutoAdmit. A Fox News spokesperson previously confirmed to Business Insider late Friday that Neff had resigned, but did not confirm the circumstances behind his departure nor did they comment on the CNN Business report. Visit Business Insider's homepage for more stories. Fox News executives issued a memo on Saturday to condemn the "racist, misogynistic, and homophobic" online activity of host Tucker Carlson's former top writer that were revealed in a CNN Business report.