Protests April 30, 2024 7:20 pm NYPD enters Columbia University in riot gear to clear protest New York police officers arrived at Columbia University shortly after 9 p.m. Tuesday night to clear protesters barricaded inside Hamilton Hall. US & World Videos 0:34 Video shows moment Milwaukee news crew witnesses hit-and-run 1:20 WATCH: School bus crashes into mobile home in South Carolina 1:13 1 dead, 30 hospitalized after plane hit with severe turbulence 0:51 Bright orange baby monkey, François' langur, born at San Diego Zoo 2:42 Jennifer Lopez reveals how she came up with iconic one-liner in ‘Atlas'