By Jim Melwert

WEST CHESTER, Pa. (CBS) — A West Chester man is facing over 300 felony charges from an investigation that started with allegations of a sexual assault.

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That investigation started when a woman, who responded to a Craigslist ad for a model, told police a man forced her to perform a sex act and videotaped it.

That man, according to Chester County District Attorney Tom Hogan, is 28-year-old Daniel Milowicki and Hogan says investigators found hundreds of child porn images and upskirt videos in Milowicki’s home.

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“He starts just viewing child pornography, then he starts creating his own pornography with these upskirt videos and then he progresses to actual sexual assaults.”

Milowicki runs a photography and DJ service under the name Danny Wicki and DJ Dan Dub C.

He’s charged with hundreds of felonies including Involuntary Deviate Sexual Intercourse and possession of child pornography.

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State Police are investigating if there may be more victims.