Love, and her husband. Its terrifying. You wonder what kind of story were you involved with . Jealousy, betrayal, revenge. Who had the motive to kill one person and one person only . There is no perfect murder. Im lester holt and this is date line. Heres andrea with the fire inside. Reporter its been said that everyone has three lives, one public, one private. And one secret. But in 2011 two new york area families had all three exposed when their lives collided in a lurid tale of sex and jealousy fire and murder. Its terrifying because then you think, well, hey. It could happen to me. It could happen to any one of us. Forever, those people forever their souls will be marred and torn by these events. Its hard to know exactly what happened that day at that door. Reporter that day was march 6th, 2011 a raw and rainy sunday in tea neck, new jersey. Henry rodson was the first to spot trouble. Reporter what was happening that night . I had a flat tire earlier in the day, and i had to come ba
Love, and her husband. Its terrifying. You wonder what kind of story were you involved with . Jealousy, betrayal, revenge. Who had the motive to kill one person and one person only . There is no perfect murder. Im lester holt and this is date line. Heres andrea with the fire inside. Reporter its been said that everyone has three lives, one public, one private. And one secret. But in 2011 two new york area families had all three exposed when their lives collided in a lurid tale of sex and jealousy fire and murder. Its terrifying because then you think, well, hey. It could happen to me. It could happen to any one of us. Forever, those people forever their souls will be marred and torn by these events. Its hard to know exactly what happened that day at that door. Reporter that day was march 6th, 2011 a raw and rainy sunday in tea neck, new jersey. Henry rodson was the first to spot trouble. Reporter what was happening that night . I had a flat tire earlier in the day, and i had to come ba
Police questioned everyone. The estranged wife, the new love, and her husband. Its terrifying. You wonder what kind of story were you involved with . Jealousy, betrayal, revenge. Who had the motive to kill one person and one person only . There is no perfect murder. This is dateline. Heres andrea with the fire inside. Reporter its been said that everyone has three lives, one public, one private. And one secret. But in 2011 two new york area families had all three exposed when their lives collided in a lurid tale of sex and jealousy fire and murder. Its terrifying because then you think, well, hey. It could happen to me. It could happen to any one of us. Forever, those people forever their souls will be marred and torn by these events. Its hard to know exactly what happened that day at that door. Reporter that day was march 6th, 2011 a raw and rainy sunday in tea neck, new jersey. Henry rodzen was the first to spot trouble. Reporter what was happening that night . I had a flat tire earl
reporter: this is tony tung. he admits he did some foolish things in the wake of his wife s affair, but insists murder wasn t one of them. he says he was surprised investigators suspected him. did you tell them everything? yeah. i mean, why would i lie about stuff like that? i didn t do anything wrong. reporter: according to tony, he only went to rob s home to put a face with the name. that s a bold move. i want to know who the person is. so you ring ring the doorbell. yeah. i say, you know, my name is tony. i m sophie s husband. can i come in and talk to you? he was like, okay. yeah, sure. so i walked in. what do you two talk about? first we, like, small talk. just family stuff. this sounds crazy. no one would believe it. reporter: as awkward as it sounds, tony says, the two men actually found common ground. you re talking about cooking
reporter: after rob cantor s murder, investigators searched for a link between his death and two other arson homicides in bergen county. they couldn t find one. so detectives intensified their focus on those who d been closest to rob. was this high priority? absolutely. we interviewed the friends and family members. lots of people to talk to? yes. reporter: at the top of the list were the two women in rob s life. his lover sophie menuet and his estranged wife, susan kirschenbaum seen here in a facebook photo. we did bring her in and speak to her. who wanted this divorce? rob or susan? i think they both wanted it. it was a mutual decision. reporter: still, the detective says, rob s estranged wife seemed devastated by his death . according to susan, she d been at home and on the phone with a friend on the night of the