news September 8, 2021 9:07 pm FDNY Commissioner Looks Back on 9/11, 20 Years Later FDNY Commissioner Dan Nigro speaks with News 4’s Myles Miller about his experiences on Sept. 11, 2001. Local 14:23 NYPD arrests around 100 protesters at Columbia University 29:11 NYPD moves in on protesters at Columbia University making dozens of arrests 1:45 NYPD enters Columbia University in riot gear to clear protest 3:24 Mayor Adams and the NYPD urge protesters to leave Columbia University 18:33 NYC Mayor Eric Adams says Columbia University protesters include outside actors