two women coping with terrible tragedies. neither willing to accept the sheriff s department s conclusions. mary was about to make some incredible accusations, and she wouldn t back down. coming up could rebecca have been killed? a second autopsy magnifies the mystery. deep bruising and internal bleeding, which couldn t be explained by the hanging. but could be explained by what? somebody knocking her down from behind and hog-tieing her, a struggle. reporter: a twist was coming. did you have anything to do with rebecca s death? absolutely not. you thought you had nothing to hide? i knew i had nothing to hide. when the mansion on ocean boulevard continues. sion on oc boulevard continues breeze drifting on by you know how i feel [man: coughing] it s a new dawn, it s a new day. no matter how you got copd it s time to make a stand.
said to you that filing a lawsuit, a civil lawsuit, to find answers in a criminal matter is generally an extremely unsatisfying way of pursuing justice. that may be, but my only recourse was the lawsuit. reporter: soon, they would start to get answers. just not the ones they expected. coming up where was dina the night of rebecca s death? this eye witness was adamant, it was very clear, no doubt about it. powerful new video evidence. and the dna evidence? where was it? adam shacknai admits that morning he cut rebecca down. he gave cpr pumps to her chest. and there s no dna? zero. when the mansion on ocean boulevard continues. ean boulevard continues because we re the engineers who built the most reliable network in america. thousands of smarter towers, with the 5g coverage you need. broader spectrum for faster 5g speeds.
below beyond a reasonable doubt, which is the standard in a criminal case. it is, however, still a challenge. and when the case went to trial, keith greer would be up against a top notch defense team. did you feel overmatched? i was so outgunned it was pathetic. coming up, two families connected by tragedy, prepare to go head-to-head in a courtroom. did you attack her? no. did you sexually assault her? no. did you tie those knots on her body? no. would a jury believe him? i sat down and said mary, i m sorry, this is probably not good news. when the mansion on ocean boulevard continues. when the mansion on ocean boulevard continues not just unpredictable relapses. all these other things too. it can all add up. kesimpta is a once-monthly at-home injection. that may help you put these rms challenges in their place. kesimpta was proven superior at reducing the rate of relapses, active lesions,
Transcripts for MSNBC Dateline 20201130 06:53:15 archive.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from archive.org Daily Mail and Mail on Sunday newspapers.
reporter: once again, police raced through the streets of quiet coronado island. and once again, their destination was the mansion on ocean boulevard. jonah s girlfriend rebecca was staying there. jonah s brother adam had spent the night in the guest house. you wake up. you walk out. tell me what you see. a woman hanging. at the time, i didn t necessarily think to myself, oh, my goodness, she s bound, or whatever. but just rebecca s hanging. reporter: naked, bound hand and foot, rebecca zahau was hanging by the neck from a second-floor balcony. i said i guarantee you, my heart started racing. this is actually happening. okay. how old is she? i d say about 30. 30? okay. when was the last time you saw her? last night. reporter: even as he called 911, adam says he thought she was dead.