AdvertisementPolice enter Columbia University's Hamilton Hall amid pro-Palestinian protestsUpdated April 30, 2024Ayana ArchieBill ChappellJaclyn DiazBrian MannfacebookEmailNYPD officers in riot gear break into a building at Columbia University, where pro-Palestinian students are barricaded inside a building and have set up an encampment, in New York City on April 30, 2024. (AFP/Getty Images)This article was originally published on April 30, 2024.