Noah Phillpotts, 19, plans to file a federal civil rights lawsuit over the incident.
NYPD officials told Noah Phillpotts they'd withdraw the summons, but have failed to do so, his dad said.
Like schools citywide, Park Slope Collegiate has seen a drop in violent incidents, data show.
The mayor's son showed up to a rally outside Park Slope Collegiate.
The Park Slope Civic Council is hosting its annual Food for Thought fundraiser on Oct. 15.
Students say they're not surprised by a report of police telling teens to "get out" of Park Slope.
For the second time in a month, a teacher at a Park Slope school had property stolen from a classroom.
A Park Slope teacher had her purse stolen out of her classroom, police said.
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