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Convicted sex offender arrested in Joliet, Illinois for taking photos of boys at swimming pool

Sex offender arrested for taking pictures of boys at Joliet swimming pool
Sex offender arrested for taking pictures of boys at Joliet swimming pool 00:39

A convicted sex offender in Joliet, Illinois has been charged with taking photos of boys at a swimming pool.

Police said 61-year-old Farrell Theis was working his job to restock vending machines at the Joliet Park District building at 3000 W. Jefferson St. shortly before 9 a.m. on Feb. 2, when a staff member caught him taking pictures of high school boys using the swimming pool.

Detectives learned Theis is a convicted child sex offender, and found the photos of the boys on his cell phone.

Theis was arrested on Tuesday in Romeoville on a charge of child photography by sex offender.

It's not clear how Theis got authorization to be on park district property as a convicted sex offender.

Court information for Theis was not immediately available.

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