A longtime Osceola County school custodian has been arrested after police say they found hundreds of images and videos of child sexual abuse material on his electronic devices.

St. Cloud police arrested Mark Stone Harden, 57, on Wednesday following a monthslong investigation by the department’s Internet Crimes Against Children unit.

Detectives say they began investigating after receiving a tip in August from the Osceola County Sheriff’s Office.

According to investigators, a search warrant executed last week at Harden’s home on Georgia Avenue led to the discovery of more than 200 files containing child sexual abuse material.

Police say Harden is facing 12 felony charges, including 10 counts of possession of sexual conduct by a child, one count of promotion or depiction of sexual conduct

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