June 3, 2014 10:02 pm Rahm Appears on “The Tonight Show” Chicago mayor yuks it up with host Jimmy Fallon, making good on his pact to appear on the talk show if Fallon did the Polar Plunge. NBC 5’s Mary Ann Ahern reports. US & World Videos 1:36 A student brought a gun to middle school in Hartford: police 1:45 NYPD enters Columbia University in riot gear to clear protest 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 2:04 Arrests made, camps removed during pro-Palestinian protest at UConn