Tarrytown headmaster of NYC school resigns after facing additional charges

The Tarrytown headmaster of a posh New York City private school has resigned after facing additional charges following his arrest last month for alleged Internet sex crimes. Now John Dexter is accused of possessing child pornography in his Tarrytown home.

Dexter was charged Wednesday morning in Tarrytown court. His home was searched after his arrest in October. Dexter, who has worked at the Trevor School in Manhattan, apparently thought he was having online conversations with a 14-year-old girl but was really speaking with an undercover investigator from the DA's office.

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