September 8, 2011 8:42 pm Pharmacy Killer Pleads Guilty David Laffer, the man accused of killing four during a robbery at a Long Island pharmacy, pleads guilty. Local 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 15:40 Aerial views of Hamilton Hall at Columbia University