you know, and that was our duty. reporter: but as vincow described how he found his mother's body, ramirez leaned forward and smiled. hancock: he had a little smirk on his face. he was just radiating evil. just -- just pure malevolence. i could feel waves of hatred coming out of him and just pure malice. and i looked at him, and i thought, "i better not look at him anymore." dietz: when he got the nickname "night stalker," why not play it out a little more and get some more power by scaring people in the courtroom, creating images that would be remembered decades later of his antics in the courtroom? so he succeeded. yochelson: this was a long trial. we had approximately 165 witnesses, some 8,000 pages of transcript or testimony