Victor Urena, 20, was the first of five people attacked by suspect David Baril, police said.
The man is thought to be behind four hammer attacks near Union Square on Monday, police said.
The mayor said the city respects non-violent protests but participants must obey police commands.
Meet the people who are upholding the long-standing NYC tradition of May Day protests.
Two NYPD officers were also injured in the protests against recent police-involved killings.
Churros vendor Ana Alvarado says police confiscated and ate her churros after arresting her.
The women were arrested on the L train platform for selling without a license, police said.
New York City has celebrated Saint Patrick's Day since March 17, 1762.
DNAinfo is collecting your images on Instagram to show the range of daily commutes.
David Van Zandt will do a live chat answering questions from the community about the school's expansion.
Lionel Burton, 18, copied checks from the Waterside Plaza Tenants Association, police said.
The New School is revamping Arnhold Hall on 13th Street with new performing arts spaces.
Little Sal's is serving traditional fare inspired by owner Andrew Silverman's Italian mother-in-law.
Derrick Mcleod, 24, of Brooklyn, was arrested on Thursday morning, police said.
The 2, 3, 4, 5, 6, 7, A, C, D, E, F, L, Q, R and 42nd Shuttle will all be impacted.
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