After a months-long investigation by the Justice Department's Project Safe Childhood initiative, where the federal-state joint task force was investigating an Illinois man who was allegedly trading child porn images, emails from Donald Sachtleben were discovered on confiscated computers.

Donald Sachtleben, is a 54-year-old resident of Carmel Indiana, is currently a sitting professor at Oklahoma State University and the school’s director of training at its Center for Improvised Explosives.

Prior to his employment at Oklahoma State, Sachtleben was an FBI Special Agent, working as a bomb technician from 1983 to 2008. During that time he worked the Oklahoma City bombing and Unabomber investigations. According to his LinedIn profile, Satchtleben is an “accomplished investigator with more than 25 years of experience in FBI major case management, counter terrorism investigations, bombing prevention, post blast investigations and public speaking.”

He was taken into custody on Monday and jailed on child pornography charges. The investigation on Satchtleben was initiated after finding an email on a computer confiscated in a child pornography case. According to prosecutors in the case, nine images were included in an email that read, “Saw your profile on (a file sharing network). Hope you like these and can send me some of ours (sic). I have even better ones if you like.” His email account was “pedodave69.”

When the investigation seized Sachtleben’s laptop computer last week, they found thirty graphic images and videos stored on it. His wife was also interviewed during the investigation, she claimed no involvement and was not arrested.

Today, all information on Sachtleben’s work is no longer available on the University’s site. If convicted, Sachtleben could be jailed for up to 20 years for distribution, in addition, he could be jailed for another ten years for possession.

The FBI had no comment on Sachtleben’s arrest.