 At this international conference, hosted by Ghanaian President Kwame Nkrumah, Lumumba further solidified his Pan-Africanist beliefs.Nkrumah was personally impressed by Lumumba's intelligence and ability.In late October 1959, Lumumba, as leader of the MNC, was arrested for inciting an anti-colonial riot in Stanleyville; 30 people were killed.