Police: Darien man propositioned undercover officer posing as 14-year-old girl online

Greenwich police went undercover to catch a sex predator. They say one suspect thought he was going to get sex, but instead the police were there waiting for him.
Greenwich police say sexual predators all over the world are preying on young people. Thanks to their work with the FBI, they say they caught a Darien man at his own game.
"Suspects will travel long distances if they feel they can meet with the victim," said Greenwich Police Capt. Mark Zuccerella.
Greenwich police say they recently noticed 59-year-old David Rewcastle from Darien entering a chat room. That's when the Greenwich Police Special Victims Section went to work.
"One of the tactics that investigators use is to pretend to be a child and enter into chat rooms and look to see if anyone asks them like in this particular case alleged to have asked them to have relations with them," said Zuccerella.
Police say one of their investigators pretended to be a 14-year-old girl. As the online conversations continued, police say Rewcastle became more sexually explicit.
"They engaged in conversations that ended up being with the alleging that the suspect wants to have intercourse with the child and then eventually set up a meeting point here in town to come and do that," said Zuccerella.
Police say when Rewcastle showed up in Greenwich they were there waiting to arrest him.
The University of New Haven confirmed that Rewcastle was an adjunct professor there. The school gave News 12 Connecticut this statement, "The University immediately suspended him, pending an investigation. As this is an active investigation being led by the Greenwich Police Department, the university will have no further comment at this time."
Greenwich police advise parents to keep an eye on what their kids are doing online.
Rewcastle was arraigned Monday and was being held on a $150,000 bond.
Police say if parents have concerns about what sites their children are on there is a website they can click here.