Webcam invasion…HELP!!!

My daughter has met someone online that lives in another country. I already have IMGrabber and read that he had turned on a webcam and she could see him. We don’t have one so I don’t know how this happened but this is my question….is there a spy program that will allow me to capture the images that are coming through via his webcam? I could just turn off the computer but I would rather find out first if anything wrong is going on and catch the guy without alerting him. There maybe nothing going on but I have my suspicions. Any help would be GREATLY appreciated. Sharon