. >> san diego attorney keith greer. >> dr.bleeding which couldn't be explained by the hanging. >> wait one second. it couldn't be explained by the hanging but could be explained by what? >> by somebody knocking her down from behind and hog-tying her, something along those lines. a struggle. a struggle. >> plus greer says the force of falling nine feet from the balcony should have caused more severe injuries to rebecca's neck. greer, like dr. wecht, believed someone killed rebecca and then placed her body at the end of the rope. and he began to develop a theory as to who. >> the writing on the door is the key to the case. >> remember the message painted on the bedroom door? sheriff's investigators initially declined to reveal what it said. greer eventually found out. the message scrawled in black acrylic paint read, "she saved him. can you save her." greer believed the message was not written by rebecca. it was written about her. >> who did she save? she didn't save max. >> she did save max. at the time you have to look at this

even though the zahau attorney keith greer had a witness willing to testify that he saw dana outsideght. adamant. he was very clear, no doubt about it. >> and turned out to be dead bang wrong? >> dead wrong. >> in april 2017, after four years of litigation, this security camera video came to light. it's from the hospital where max shacknai was being treated. the same night rebecca zahau died. clearly visible dina shacknai. at some point you look at the footage and you realize, i'm wrong. and my witness is wrong. dina won their, she was at the hospital provably. >> absolutely. i got mad. i got really mad. >> greer called a press conference to publicly eat some crow. >> when these pictures come out though, you can't refute them. >> he removed dina from the lawsuit along with her sister nina. and the family attorney apologized to you, was that enough? >> he made a public apology. i would say that not as many people saw the public apology, as who saw continuous accusations against us. >> he pushed forward anyway with just one defendant adam shacknai. that's to me, this is some scattersho

even though the zahau attorney keith greer had a witness willing to testify that he saw dana outside adamant. he was very clear, no doubt about it. >> and turned out to be dead bang wrong? >> dead wrong. >> in april 2017, after four years of litigation, this security camera video came to light. it's from the hospital where max shacknai was being treated. the same night rebecca zahau died. clearly visible dina shacknai. at some point you look at the footage and you realize, i'm wrong. and my witness is wrong. dina won their, she was at the hospital provably. >> absolutely. i got mad. i got really mad. >> greer called a press conference to publicly eat some crow. >> when these pictures come out though, you can't refute them. >> he removed dina from the lawsuit along with her sister nina. and the family attorney apologized to, was that enough? >> he made a public apology. i would say that not as many people saw the public apology as who saw continues accusations against us. >> he pushed forward anyway with just one defendant adam shacknai. that's to me, this is some scattershot attempt