. >> reporter: veteran prosecutor wayne mello, who was chosen to try the case obviously saw it differentlys case was about perhaps the oldest motive in the world, in this case she and he done him wrong. >> reporter: according to the prosecutor, tony's rage, simmered until one event finally set him off on march 6th, 2011, that day was the day tony learned that sophie had introduced one of his daughters to rob. this would be first time that a child of tung had met mommy's friend rob. in a timeline, partially captured by security cameras, tony is seen just after 8:00 pm that night, talking with his daughter, cleo in the lobby her mother's apartment building. >> cleo will tell her father oh, yes i had a lovely day today, mommy and i went to a museum. i met her friend rob. time is now 8:20 p.m. >> reporter: almost two hours pass before tony is seen again. mr. tung, is seen on video parking his car at 10:10 pm. we see him on that video walk from his car to his residence. then about 20 minutes later security cameras again catch a glimpse of tony. >> you will see him walk to his car. you will see