Cas Holloway, Columbia’s Chief Operating Officer, said, “The event that took place Sunday night was unsanctioned and unapproved and was held despite multiple cancellations by both Columbia and Barnard. We immediately notified law enforcement and engaged an outside firm led by experienced former law enforcement investigators to conduct an investigation. We have banned the outside speakers from campus. Columbia University rejects all forms of hate and bigotry, and we unequivocally condemn language that promotes or supports violence in any manner. We will pursue discipline against any community member who has violated our policies.”