Sandra Met News Today

>> reporter: sandra met tony tung when she was living in new york back in the 80s. she says when tony first met sophie, he fell hard. >> they were a beautiful couple. i was very happy for them and i was very happy for tony. and then sophie being french, so that was great. >> reporter: when contacted by investigators, sandra told them all she knew. sophie had the career, an important job in finance with an international firm. tony stayed home with the kids. he served as president of the pta at th...

You know, my friend was really going through a terrible time and i was so far away. >> reporter: sandra met tony tung when she was living in new york back in the 80s. she says when tony first met sophie, he fell hard. >> they were a beautiful couple. i was very happy for them and i was very happy for tony. and then sophie being french, so that was great. >> reporter: when contacted by investigators, sandra told them all she knew. sophie had the career, an important job in finance with an interna...

Families would be there. >> did you follow the trial? were you able to over the internet? >> i was able to, yes a little bit. >> for sandra, the man she read about in online accounts was no resemblance to the man she had known for 30 years. >> did you think for a second maybe i dont know tony as well as i think? >> no. no. because tony knew also that doing something stupid as in going to kill this man, then what? then you end up in jail for the rest of your life and is it really worth it? i mean...

Sophie and her daughter, her 8-year-old daughter at a museum. >> how open is sophie to you? >> she was a very open person. when i asked her, why would rob cantor be found in the basement bedroom, she broke down and she began to cry. >> what was significant about the basement bedroom? >> that was the place that she and rob had consummated their relationship. >> the french-born sophie was 40. 19 years younger than rob. they had been seeing each other for more than a year and had a lot in common, r...

Friend of sophies husband was living in france when she heard about the affair. >> i was sad. you know, my friend was really going through a terrible time, and i was so far away. >> sandra met tony living in new york in the 80s. she says when tony first met sophie, he fell hard. >> they were a beautiful couple. i was very happy for them, and i was very happy for tony and then sophie being french. so that was great. >> when contacted by investigators, sandra told them all she knew. sophie had a c...

>> yeah. >> once the girls were older, tony wanted to work too. so with sophies financial help he opened a computer store. hopes were high, but business was bad and sandra says when tony learned sophie was having an affair, his world fell apart. >> he was really, really hurt. but trying to do his best for the girls, as always. >> the couple soon went their separate ways. but when rob cantor was killed a year later, investigators came to see tony. >> the reason were here is because theres been an...