Hundreds congregated in city squares to express frustration over police treatment of minorities.
Donovan said he wasn't worried that protests in Ferguson would affect the Eric Garner grand jury.
Kevin Darden is due back in court on Jan. 12.
Garner died from an apparent chokehold while being arrested on Staten Island.
Staten Island's District Attorney Daniel Donovan said Tuesday that he will convene a grand jury.
Det. Wojciech Braszczok, 32, did not touch the SUV driver, his lawyer told DNAinfo New York.
NYPD Det. Wojciech Braszczok and three other motorcyclists appeared in court Friday morning.
Graham's family called for a federal investigation after a Bronx grand jury didn't indict a NYPD officer.
Bronx District Attorney told Ramarley Graham's mother the news Wednesday as she delivered petitions.
Ramarley Graham's family plans to rally outside the DA's office Thursday calling for a new indictment.
A grand jury chose not to indict Detective Hassan Hamdy for the killing of Noel Polanco.
Detective Hassan Hamdy will defend his fatal shooting of 22-year-old Noel Polanco.
The EMT said she felt "defeated" by news that the felony charges against him are unlikely to stick.
Harley Flanagan, accused of stabbing his former bandmates, had his case dismissed Friday.
Thirteen jurors pooled their bets to pick up a piece of the $588 million Powerball prize money.
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