NORTH CANTON — A sex offender used a false name to get a job teaching special programs at the North Canton Public Library and worked with children and teens for over two years, investigators say.

Jason M. Mazan, 34, of Lake Township, is a registered sex offender who had been working under the name of Jason Drake, according to Stark County Jail records. Mazan, labeled a habitual sex offender, was arrested at 9 a.m. Wednesday at the jail on felony charges of obstructing justice and failure to notify authorities that he had changed his address.

Christina Weyrick, community relations manager for the library, confirmed that Mazan had been working under an assumed name, unbeknown to the library, but not as an employee.

"He did programs for us," she said. "He was not an employee of the library. We paid him to present at our how-to festival and, most recently, to offer a program on special effects makeup at Lib-Con, which is a comic-con type event. He was a presenter."

More importantly, she said, "To our knowledge, no one was harmed in any way. He was not alone with children while offering programs, and he was not a regular employee."

The Lib-Con event advertised on the library's website for his most recent class described him as a presenter for a noon class on Nov. 17 on FX Makeup Tips and Tricks. He is listed as Jason Drake, owner of Drake Enterprises. The website goes on to say that Drake is a Kent State graduate with a theater degree, owns his own comic book prop making businesses and has been a regular panelist at local conventions throughout Ohio.

According to the jail records, Mazan was using "a false name to hide his true identity while working with pre-teen and teenage kids."

He is on parole, having been released from prison in June 2013 after serving time for attempted sexual battery and attempted unlawful sexual conduct with a minor in Summit County, according to Ohio Department of Rehabilitation and Correction records. He was convicted in 2012, and he is listed on the Ohio Attorney General's Office registered sex offender website. Summit County court records also show he was convicted of falsification in the sex-crimes case.

Although Mazan is accused of failing to notify authorities that his address had changed, the jail records did not say where he has been living nor for how long.

He remained in jail Thursday, held in lieu of $25,000 bond pending a Canton Municipal Court hearing.