We are not perfect,” said John Chell, the Police Department’s chief of patrol, as protesters gathered in Union Square.

Two officers pursued a fare evasion suspect, then opened fire as he approached them, police said. The suspect, one officer and two bystanders were shot.

Protesters jumped the subway turnstiles in Union Square to bring attention to what they say was a reckless reaction by the NYPD for shooting a man over doing the same thing.