Carol Cavazos, CBS 11 News | CBSDFW.COM

McKINNEY (CBSDFW.COM) – Women hoping to save on rent in McKinney were scammed on Craigslist by a sexual predator. McKinney Police and U.S. Marshalls arrested him Friday morning.

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They say there have been at least two victims and they’re investigating a third, they believe there could be more.

Roger Allen Stulce, Jr. lived at the Villas of El Dorado Apartments. Police say he lured his unsuspecting victims to his apartment in building eleven. Police put out an alert, hoping other victims will come forward.

McKinney Deputy Chief Kim Malolepszy says Stulce posted many ads on Craigslist offering free or reduced rent in exchange for help with cleaning. “The victims would read the ad thinking there’s a bargain there. They would meet with him and then sexual advances would be made.

Police arrested Stulce, who’s 40, and charged him with the sexual assault of a woman in June.

Police call Stulce a predator.

“A monster,” said Deputy Chief Malolepszy.

McKinney police had arrested Stulce in March for solicitation of prostitution.

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“He made the offer of sex in return for the apartment,” Deputy Chief Malolepszy.

Amber Chambers has been visiting her mother who lives at the same apartment complex, The Villas of Eldorado.  Chambers noticed Stulce a few days ago.

“I looked over there just to kind of observe my surroundings and I saw him and another lady sitting on the patio. And, of course, he was on the computer,” Chambers said.

Police had warned apartment management about Stulce in March. Chambers is upset that managers didn’t remove him or warn them about him then.

“They failed to tell my mother and my sister that live here. And, we have my nieces and nephews that play out at the pool all the time 24/7. That’s not right,” Chambers said.

McKinney Police and the FBI have been gathering evidence from Stulce’s apartment. They found other items of interest and asked for an amended search warrant to collect it.

Police are encouraging other victims to come forward.

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McKinney Deputy Police Chief, Kim Malolepszy, said, “We want to help the victims. We want to make the community safer.”