(Radio Iowa) – A man who once ran a photography business in eastern Iowa has pleaded guilty to a federal child pornography charge. Gordon Grabau’s home in Marion was searched last summer. According to the U.S. Attorney’s Office, investigators found 160-thousand files containing child pornography on five different devices. Some of the images involved infants and toddlers. Grabau had previously worked as a T-S-A supervisor at the Cedar Rapids airport. After his arrest last summer, he was immediately suspended from his long-time volunteer role as a reserve deputy in the Linn County Sheriff’s Department.

Grabau, who is 51, has pleaded guilty to one count of receiving child pornography. The conviction carries at least five years or a maximum sentence of 20 years in federal prison. Grabau had operated a business in Marion called G-G Photography. During a hearing last year, an F-B-I agent testified Grabau had been sharing pornographic images for the previous nine years.