Bloomberg not only knew all about this, but the press was kept from Zuccotti that morning at his order. His first statement after the clearing said everything that happened in the Zuccotti eviction was his responsibility and no one else's. "Make no mistake," that statement said, "the final decision to act was mine." And when people and the media began complaining about the press being prevented from covering the eviction, Bloomberg hid behind the excuse of all totalitarian governments, saying it was for reporters' own safety - "to protect members of the press".
Fortunately, Bloomberg listened to reason when, according to the NY Times, "A coalition of news organizations ... sent a letter complaining about the treatment ." That's all to the good.
But Bloomberg should be impeached. There's no guarantee he won't do something like that again. New York City deserves a Mayor who has a less steep learning curve where the First Amendment is involved. The city that never sleeps needs a Mayor who gets First Amendment right the first time around.
my interview of NY Night News about Bloomberg, OWS, the press
Occupy Wall Street Chronicles, Part 1