An anti-Islam protest organized by right-wing influencer and pardoned January 6 rioter Jake Lang drew roughly 20 participants, while a counter-protest called “Drive the Nazis Out of New York” peaked at about 125 people
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The two groups were separated into designated protest areas by NYPD officers, but tensions escalated shortly before noon. At around 12:15 p.m., a protester associated with Lang’s group used pepper spray against counterprotesters
About 20 minutes later, an 18-year-old counterprotester “lit and threw an ignited device toward the protest area,” which landed on a crosswalk
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The man then ran southbound to retrieve a second device from a 19-year-old man before lighting it and starting to run, Tisch said. He dropped the second device on a street, and officers secured the area, taking both men into custody.



I believe this person is trying to say this was an agent provocateur. Since it was violence coming from the left wing side, we can make a guess that this could be a person in police issued boots or at least pushing someone in the group to do violence.
We already know right wingers are more violent, the left is much less so, more often than not it takes agents for the state to push them to do drastic actions so they can be cracked down on by the state.