Rebello's high school principal, Carol Conklin-Spillane, said the twins' home community in Westchester was heartbroken.

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Andrea's high school principal, Carol Conklin-Spillane, said the girls' home community in Westchester, New York, was heartbroken.

CNN: Hofstra student killed in home invasion

Rebello's high school principal, Carol Conklin-Spillane, said the twins' home community in Westchester, New York, was heartbroken.

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