george tiller was just shot. >> that sunday morning, dr. he tragic news to each other by phone. >> i called joanne first, and, of course, she was devastated. >> cathy said, they shot doctor. i remember specifically cathy said they, and that's exactly how we thought of it, they. we knew exactly who they were. >> then i called dr. sella, and i still hear her screaming in my ears, oh, no. you're kidding. you're kidding. >> i don't think i've ever experienced that kind of grief. it seems so wrong. so wrong. that someone who was so incredible, so amazing to be killed. for what? >> during the murder investigation, authorities discover a piece of evidence in scott roeder's car that potentially connects him to operation rescue. when questioned, operation rescue president troy newman flatly denies any ties to roeder or to the murder. >> one of our phone numbers were found on the dashboard of scott roeder's car after he was arrested, and it was the contact phone number that was the information line. it was where people call to find out where the praye