PALATINE, Ill. (WLS) -- A north suburban teacher's aide has been charged with sharing child pornography online, the Cook County State's Attorney's Office said on Friday.

Bradley Robertson, a 41-year-old teacher's aide at Palatine High School, has been indicted on eight counts of reproduction of child pornography with a victim under 13 and possession of child pornography.

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Investigators received a tip early this year about an account using child sexual abuse materials on Kik, an instant messaging app, according to court documents. Investigators executed search warrants to obtain the IP address, email address, phone number and home address of the suspected account, which was linked back to Robertson.

Authorities searched Robertson's

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