An Allegheny County man who worked for a private security company at Seneca Valley High School last year is facing dozens of felony charges from Cranberry Township police, who say he possessed and shared nude photos of a female student.

Matthew A. Cowan, 24, of Brackenridge, is facing 14 charges of child pornography, 20 charges of disseminating photos of child sex acts and 20 charges of criminal use of a communication facility.

The female student, who was between 16 and 17 years old, told police she sent nude and sexually explicit photos to Cowan for about eight months before the beginning of the 2021 school year, according to an affidavit. Cowan worked at the high school for Securitas Security Services USA, which provided security at the Seneca Valley campus in the township, police said.

The investigating officer, Detective Matthew Irvin, said in the affidavit that two people reported receiving nude digital images of the girl from an unknown source through Snapchat and Instagram.

Instagram records show an account used by Cowan sent 14 nude or sexually explicit images and videos of the girl to at least seven people on at least 20 occasions between Aug. 21 and Aug. 23, 2022, according to the affidavit. Police said Cowan used his home wireless internet service to send most of the images.

Cowan also is facing charges from Jackson Township police for inappropriately touching a 17-year-old female student on a trail behind the campus in August 2021. Cowan worked as a security guard at the middle school at that time.

In that case, the charges against him were held for court at a preliminary hearing in November 2022. Those charges are felony counts of aggravated indecent assault, sexual contact with a school student and criminal use of a communication facility, and misdemeanor charges of indecent assault and strangulation.