An honor-roll student and cheerleading captain was "murdered heinously" during a celebration for her high school in the Hudson Valley.

On Saturday, Westchester County District Attorney Miriam E. Rocah announced that a 15-year-old Mount Vernon resident was arraigned on charges connected with a stabbing that killed one teen and injured another.

The unnamed 15-year-old was charged with manslaughter, attempted assault and assault, all felonies.

Fatally Stabbing in Westchester County

The 15-year-old is accused of fatally stabbing a 16-year-old Mount Vernon resident on Friday around 4 p.m. on Gramatan Avenue in Mount Vernon.

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“This is a terrible tragedy and we mourn the loss of this young life that was taken far too early. Our thoughts are with the victims’ families and the entire Mount Vernon community,” Rocah said.

The 15-year-old also allegedly stabbed a second victim. A 15-year-old was taken to the hospital for treatment of a puncture wound and other injuries, officials say.

Mount Vernon High School Student Killed

Officials did not confirm who was killed, but local residents report Junior Varsity cheerleading captain Kayla Green was killed during Friday's celebration for the Mount Vernon High School boys' basketball team.

NYS Section 1 Cheerleading
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"Three weeks after her 16th birthday, Kayla Green was murdered heinously," a GoFundMe states. "She sustained multiple wounds and passed away. Her family is devastated with the sudden loss and (is) trying to cope in the midst of this unexpected tragedy."

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Boys & Girls Club of Mount Vernon confirmed the fatally stabbing that occurred during what was supposed to be a celebration for Mount Vernon High School.

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"What a beautiful soul with beautiful dreams, fly high Kayla," Damon K. Jones wrote on Facebook.

Kayla Green, Mount Vernon

Green was stabbed during a parade to celebrate the Mount Vernon boy's basketball team winning a state championship.

"An hour after the parade started a 16-year-old girl died. She was stabbed by two other high school girls. Her friend who was also stabbed has lacerations and remains in critical condition in hospital," Boys & Girls Club of Mount Vernon NY wrote on Facebook. "Children should never have to grow up in an atmosphere that cultivates violence and all of us have a stake in their predicament."

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Green was cheerleading captain and an honor roll student, according to friends and family on social media.

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"Kayla was an honor roll student and a talented dancer. She is loved and admired by everyone in her community, school and family," the GoFundMe states.

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