He tells the truth when he says that the police are behaving brutally because they don't want video catching their behaviour. The police want to keep their brutal crimes hidden from the public's eyes. O'Donnell speaks the truth. This video is well worth watching.
Previous posts are here and here.
Update: The UK's Guardian newspaper has identified the cop who maced the woman. He's a repeat offender because he is also up for a previous charge of abusing his powers and assaulting an innocent demonstrator. Here is the key bit:
A senior New York police officer accused of pepper-spraying young women on the "Occupy Wall Street" demonstrations is the subject of a pending legal action over his conduct at another protest in the city.
The Guardian has learned that the officer, named by activists as deputy inspector Anthony Bologna, stands accused of false arrest and civil rights violations in a claim brought by a protester involved in the 2004 demonstrations at the Republican national convention.
Then, 1,800 people were arrested during protests against the Iraq war and the policies of president George W Bush.