attorney and a veteran of many courtrooms. >> there will be no evidence that shows that adam shacknaidam were found at the death scene. plaintiff's attorney keith greer called several experts who testified the lack of physical evidence could show adam cleaned up after himself. >> there was nothing on the doorknobs whatsoever, as far as prints. >> again, that's conclusive with being wiped down? >> yes. >> reporter: and a handwriting expert who looked at that message on the door. >> the writing on the door is more -- [ inaudible ] >> reporter: greer also claimed rebecca had been sexually assaulted with a knife prior to her murder. the expert testified a steak knife found in the bedroom had we are blood on the handle. >> that's nowhere in any of the sheriff's records. they never considered that. >> reporter: the defense called a forensic technician who testified she did find the blood on the knife and with it a simple explanation. a recent cut on rebecca's right hand. when greer asked her if it could have come from a sexual assault? >> i didn't see any evidence of that. >> reporter: no e