A Columbia man working as a substitute teacher was arrested Thursday afternoon in Moberly on charges of illegal pornography involving a minor student at Madison High School in Monroe County.

Ty Michael Gramley, 27, was charged with one felony count of possession of child pornography and two misdemeanor counts of furnishing pornographic material or attempt to furnish pornographic material to a minor. He was booked into the Monroe County Jail.

A Monroe County Sheriff’s investigator alleges that Gramley provided pornographic videos and photos to a minor female student while he was working as a substitute teacher at the Madison C-3 School District between March 1 and March 29.

Monroe County Prosecuting Attorney Talley Kendrick issued a warrant for Gramley’s arrest on April 18. Law enforcement had since been looking for him.

Madison C-3 Superintendent Shane Stocks declined to comment on Thursday.

“The case has been turned over to the authorities,” Stocks said, adding Gramley was not an employee of the school district, which contracts with the Columbia Office of Kelly Services for substitute teachers. A report from the Monroe County Sheriff’s Department said that Gramley is a substitute teacher in multiple school districts.

A call to Kelly Services late Thursday afternoon was referred to the company’s national media office. A message left on the media office’s voice mail had not been returned as of Thursday evening.

Monroe County Chief Sheriff’s Deputy Joe Colston said that members of the Randolph County Sheriff’s Department assisted him in arresting around 1 p.m. on Tuesday in Moberly.

“I had been working with and co-investigating with the Children’s Division. They alerted us to an appointment that he had at the Moberly office of the Children’s Division this afternoon (Thursday),” Colston said. “With the assistance of the Randolph County Sheriff’s Department, we met him at the office and arrested him on the active warrant.”

Colston wrote in a Probable Cause statement that he went to Madison School on March 29 following a call from the principal, whom he said reported “inappropriate communication between a student and a substitute teacher.”

In an interview, Colston reported that the student said she had been sending and receiving sexually explicit text messages, photos and videos with Gramley, adding that she met Gramley while he was working as a substitute teacher at Madison Schools.

“(The female student) stated that the exchanges had been made via Facebook Messenger,” wrote Colston. “Both (the student) and her mother agreed to allow me to view the Facebook Messenger conversation on (the student’s) cellular phone.”

Colston said that the student had deleted photos and videos messages that she sent to Gramley, though she described the content of the messages. However, Colston alleges that photos and videos from Gramley’s Facebook Messenger account to the student’s account were still on her phone, including a graphic video.

“There was no indication in the conversation that I observed indicating that Gramley conveyed any concern about the images he was receiving,” Colston wrote.

Gramley is being held in the Monroe County Jail in lieu of $40,000 cash or surety bond. He posted bond and was released. He is scheduled for arraignment before Monroe County Associate Judge Michael Wilson on Tuesday at 9 a.m.