By Charlie De Mar

CHICAGO (CBS) — A former substitute teacher and teaching assistant at Middlefork School in Northfield is facing child pornography charges, according to a letter sent out by the District 29 superintendent.

George Gemeinhardt, 64, of Northfield, was arrested Thursday and charged with one count of possession of child pornography depicting a child under 13 and one count of possession of child pornography depicting a child under 18, Northfield police confirmed.

George Gemeinhardt, 64, of Northfield, was arrested and charged with one count of possession of child pornography depicting a child under 13 and one count of possession of child pornography depicting a child under 18, Northfield police confirmed.

School officials said Gemeinhardt was employed by the school as a substitute teacher from March to June of 2018 and as a teaching assistant from September 2018 to March 2019.

In the letter to parents, the superintendent emphasized that police “are not aware of any evidence” that the conduct happened at the schools, utilized any school networks or involved any Northfield children.

School officials were alerted about the investigation on March 20 after a tip came in to police from the National Center For Missing and Exploited Children and say Gemeinhardt did not return to the school after that day and submitted his resignation March 22.

The letter also says police asked school officials “not to interfere with the investigation by either questioning Mr. Gemeinhardt, or by discussing the matter with parents or staff prior to formal charges being filed.”

Police said Gemeinhardt said he “likes teenage girls” in March during an interview at his Happ Road home, which is also where he was arrested this week.

“I still think this is an amazing school district, and I think people who commit crimes are drawn to all sorts of areas,” said parent Patrick McCarthy.

Gemeinhardt allegedly admitted to looking at 30 to 40 pictures and 10 to 12 videos of child pornography on his personal computer.

A forensic search of his electronic devices turned up nine images of child pornography. Police said most were of girls under 13.

“I imagine there are a lot of meetings going on about it right now,” said McCarthy.

Gemeinhardt’s bond was set at $30,000, and he will be back in court in October.

Charlie De Mar