By Jim Melwert

KING OF PRUSSIA, Pa. (CBS) — Police in Delaware County are calling the acts of 37-year-old Sean Moses “despicable and offensive.”

So far they have filed more than seven dozen counts of privacy invasion and one count of possession of child pornography against the Penn Valley man. And investigators say they expect to find many more victims.

Radnor police superintendent Bill Colarulo says he doesn’t understand how Moses was able to hold down a job while obtaining the extraordinary amount of surreptitious video they uncovered on three smartphones and two computers.

According to investigators, Moses would go into dressing rooms at the King of Prussia Mall and take secret videos of unsuspecting women. They said he also secretly recorded images of women with whom he had intimate relationships.

Colarulo said two stores at the mall, Express and Forever 21, had unisex dressing rooms, separated by dividers, which enabled Moses to take videos secretly. Colarulo says Express has since replaced the dividers with ones that go all the way to the floor, but at Forever 21 it is still possible for a grown man to occupy a changing area adjacent to one being used by a woman.

He adds that one of the files they located was labeled “Jailbait.”

Police have released partially obscured videos of some of the victims in hopes they will contact police after realizing they had been photographed.

The case first came to light in September of last year, Colarulo says, when two Villanova students who lived in an apartment complex in Bryn Mawr reported to police that they saw a light outside their window. Radnor Township detectives, scanning pornography web sites, were able to track down video apparently taken at that location. They say they were able to track the video back to Moses by his IP address.