Hundreds of child pornography images and "up-skirt" videos were found in the home of a Chester County man who police said also sexually assaulted a woman he lured to his home.

Daniel John Milowicki, 28, was arrested Tuesday on more than 300 felony counts, including sexual assault and child pornography.

"This defendant is a classic sexual predator," said Chester County District Attorney Tom Hogan in a statement Wednesday.

"He progressed from possession of child pornography to creating his own clandestine pornography to a sexual assault," Hogan said.

A 21-year-old woman reported Milowicki to the Pennsylvania State Police after she responded to a Craigslist ad he posted looking for a model.

When the woman, who was not identified by authorities, arrived at his West Bradford home, Milowicki reportedly forced her to perform oral sex on him while he wore a GoPro camera, which he used to record the sex acts on video, police said.

Under the name DJ Dan Dub C, Milowicki works as a self-employed photographer and disc jockey, serving children's pool parties, birthday parties and school dances. He also worked at weddings, bars and other events, police said.

On Wednesday, Milowicki had not returned a call from The Inquirer.

Milowicki's pornography collection included images of children as young as five and videos he had surreptitiously recorded from beneath women's skirts.

State Police seized recording devices, media storage devices, computers, and sex-related paraphernalia from Milowicki's residence, along with a marijuana growing operation.

The county sees a steady stream of sexual assaults and child pornography cases, and "up-skirting" cases have become more common, Hogan said, but this is the first operation he has seen involving all three.

"This guy sort of hits the hat trick of depravity," Hogan said in an interview.

The woman who responded to his advertisement believed she would be paid $300 to model clothing in a photo shoot. She met Milowicki at a store, but he drove her to his residence, where the assault allegedly took place, police said.

Later, Milowicki threatened to release the video online if she did not participate in another photo shoot with sexual acts, she told police.

On his website,, Milowicki called himself "West Chester Pa's Best Disc Jockey." He had a second residence in West Chester.

Because "of the defendant's potential exposure to many young victims as a DJ and photographer, we remain concerned that the full scope of the defendant's conduct has not been uncovered yet," Hogan said.

He urged anyone who has had contact with Milowicki to report concerns to State Police at 610-486-6280.

Milowicki posted $25,000 cash - the 10 percent required of his bail - on Tuesday. A preliminary hearing is scheduled for April 14.