March 11, 2014 6:24 pm RAW VIDEO: Portion of Building Collapses in SF Raw footage from the NBC chopper showing a portion of a building collapsing during a massive fire near AT&T Park in San Francisco. US & World Videos 4:00 Firecrackers thrown at pro-Palestinian encampment during protester clash at UCLA 1:45 NYPD enters Columbia University in riot gear to clear protest 3:40 UCLA promises more police, disciplinary action amid protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look