BOSTON —

A former Boston science teacher pleaded guilty Thursday to federal charges related to the sexual exploitation of at least 20 girls around the world.

John Magee Gavin, 35, of Brookline, was indicted in July on one count of coercion and enticement of a minor; one count of receipt of child pornography; and one count of possession of child pornography. He was previously arrested by the Brookline Police Department in February .

Gavin pleaded guilty to one count each of coercion and enticement of a minor, receipt of child pornography and possession of child pornography, according to the office of Leah Foley, U.S. Attorney for Massachusetts.

According to the prosecution, Gavin was identified as the owner of a Discord account used to communicate with at least 20 girls between the

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