that says to me this is some scattershot attempt and you are suing everybody that comes into your line of sight looking for a sympathetic jury. >> that's it. and a lot of people looked at it that way. >> reporter: why shouldn't that shatter the credibility of the rest of your case? >> i think the reality of it is that we always had adam involved all through the process. >> reporter: in the lawsuit, greer outlined quite a detailed and unsubstantiated narrative. he argued rebecca was killed not to avenge max, but instead during a sexual assault. greer's theory is that it began when rebecca stepped out of the shower and found adam in her bedroom watching her. >> she then gets uncomfortable and tries to escape. she screams for help about 11:30 that night. >> reporter: greer says that explains the screams heard by a neighbor. >> right after that, to silence her, adam hits her on the back of the head, knocks her at least partially unconscious. then he has time to think and he grabs the black paint and he paints this phrase on the door.