Wanda Canestri was struck and killed shortly after 3 p.m. Wednesday, the NYPD said.
A 15-year-old student was arrested Tuesday and charged with making a terroristic threat, police said.
Jeffrey Valdez, 17, and a 14-year-old girl were taken into police custody on Tuesday, police said.
Susan E. Wagner High School, Curtis High School, Ralph R. McKee and Concord High School were evacuated.
John Reyes, 20, was found on the street with multiple stab wounds in his stomach.
Petal Joseph's daughter was slapped in the face by another mother during a choral concert, she said.
Bayna El-Amin, who police believe has fled the state, is wanted in connection with the May 5 assault.
The teen was shot in front of the popular coffee shop, Little Zelda, on Monday night.
Rudell Caldwell, 30, was arrested for trying to rape a woman in Melrose, police said.
Roderick Goodwin suffered severe wounds to the back of his head, police said.
The child was struck outside The Esplanade on West End Avenue, police said.
The body was found in the water near Fox Beach on Saturday morning, police said.
On a weekend radio show, Commissioner Bill Bratton discussed "false memory" of witnesses.
Four males attacked a 16-year-old on an L train, police said.
Jonathan Blum, of Dreamyard Prepatory School, was arrested in an undercover sting, police said.
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