he says, i believe my sister had something to do with it. reporter: and who was jerry jaocbs sister? well, becky sears. kay s best friend and neighbor. i think my jaw dropped right then. wasn t expecting that. he dropped a bombshell. reporter: becky s brother said he knew all about the affair between his sister and david. he told the investigator becky had once confided in him that david was trying to end it. she d come and meet one day or there in the parking lot crying. and i was like, you know, what s wrong? and that s whenever she told me she was having the affair. he then goes on to say that becky was, had been pretty upset, crying because david won t leave kay. he wont leave his wife to be with her. reporter: jacobs then revealed his sister had no intention of giving up on david or letting him stay married to kay. she had asked me if i knew of anyone or if i knew a way that
he says, i believe my sister had something to do with it. reporter: and who was jerry jaocbs sister? well, becky sears. kay s best friend and neighbor. i think my jaw dropped right then. wasn t expecting that. he dropped a bombshell. reporter: becky s brother said he knew all about the affair between his sister and david. he told the investigator becky had once confided in him that david was trying to end it. she d come and meet one day or there in the parking lot crying. and i was like, you know, what s wrong? and that s whenever she told me she was having the affair. he then goes on to say that becky was, had been pretty upset, crying because david won t leave kay. he wont leave his wife to be with her. reporter: jacobs then revealed his sister had no intention of giving up on david or letting him stay married to kay. she had asked me if i knew of anyone or if i knew a way that we could do this to kill kay and
then. wasn t expecting that. he dropped a bombshell. reporter: becky s brother said he knew all about the affair between his sister and david. he told the investigator becky had once confided in him that david was trying to end it. she d come and meet one day or there in the parking lot crying. and i was like, you know, what s wrong? and that s whenever she told me she was having the affair. he then goes on to say that becky was, had been pretty upset, crying because david won t leave kay. he wont leave his wife to be with her. reporter: jacobs then revealed his sister had no intention of giving up on david or letting him stay married to kay. she had asked me if i knew of anyone or if i knew a way that we could do this to kill kay and make it look like an accident,
i think my jaw dropped right then. wasn t expecting that. he dropped a bombshell. reporter: becky s brother said he knew all about the affair between his sister and david. he told the investigator becky had once confided in him that david was trying to end it. she d come and meet one day or there in the parking lot crying. and i was like, you know, what s wrong? and that s whenever she told me she was having the affair. he then goes on to say that becky was, had been pretty upset, crying because david won t leave kay. he won t leave his wife to be with her. reporter: jacobs then revealed his sister had no intention of giving up on david or letting him stay married to kay. she had asked me if i knew of anyone or if i knew a way that we could do this to kill kay and make it look like an accident, like cut her brake line on her car and make it look like an accident, or do something in that effect.
affair between his sister and david. he told the investigator becky had once confided in him that david was trying to end it. she d come and meet one day or there in the parking lot crying. and i was like, you know, what s wrong? and that s whenever she told me she was having the affair. he then goes on to say that becky was, had been pretty upset, crying because david won t leave kay. he won t leave his wife to be with her. reporter: jacobs then revealed his sister had no intention of giving up on david or letting him stay married to kay. she had asked me if i knew of anyone or if i knew a way that we could do this to kill kay and make it look like an accident, like cut her brake line on her car and make it look like an accident, or do something in that effect. reporter: jacobs said at first he thought becky was joking. i d be like, well, becky, that s okay. you know, sometimes we all feel that way about people. you know, she s like, no. she s like, i really want he