The “very shy” 16-year-old who tragically leaped to his death at New York City’s famed Regis High School had gotten into hot water after taking a controversial stance in his ethics class, sources told The Post on Friday.

A dean at the prestigious Upper East Side institution — which counts “Saturday Night Live” star Colin Jost and former US COVID top doc Anthony Fauci among its alum — had taken away the young man’s phone, or was just about to, amid the incident when the teen jumped from a fifth-floor window around 9:30 a.m. Thursday, law-enforcement sources said.

The teen, whose name The Post is withholding, died at a nearby hospital.

Sources described the 16-year-old as “really very shy” and “non-threatening.”

In the moments before his death, the student was awaiting potential discip

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