Former Chippewa Middle School teacher Jack K. Pickup has been charged with sexual exploitation of a child and grooming after texting a photo of his genitals to a former student, McHenry County Sheriff's police said.

Pickup, 34, of Barrington, had an online relationship with the girl, now 15, since 2011, police said. Pickup met the girl when she was a seventh grader at Chippewa and he was a teacher there.

Police said that Pickup had been texting the victim since she graduated 8th grade and that Pickup gave the girl his phone number so that they could stay in touch after she graduated.

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