Lawsuit filed against Columbia University for allegedly violating safety protocols
Charges filed against ex-Florida sheriff's deputy who shot, killed Roger Fortson
Police enter Columbia University's Hamilton Hall amid ongoing protests
Columbia University warns of consequences for student protesters
Police clash with campus protesters at Columbia University
Visiting Columbia University, Speaker Johnson considers need for National Guard
Security concerns at Columbia University amid Israel-Hamas war protests
Pro-Palestinian demonstrators arrested at Columbia University
NYPD clears Columbia University's Hamilton Hall filled with protesters
Police make arrests on Columbia University campus amid ongoing protests
