what about your accused, timothy permentor? who is he?once she got past the superficial aspect of him and realized what he really was like, she wanted out of that relationship, and that ultimately led to her death. >> prosecutor lowry said permentor thought he could outsmart the cops by playing the bereaved boyfriend, playing to the hilt at the crime scene. >> oh, god! >> the prosecutor said permentor got thrown off the tear-stained script when he called karen's best friend soon after making the 911 call. >> he said katherine, it's tim. i'm a karen's apartment and she is laying on the floor and there is blood everywhere. she has been stabbed. >> stabbed? >> stabbed. not she's dead, i don't know what happened. >> he said she's been stabbed. >> he said on the phone that she has been stabbed. >> okay. she has been stabbed. >> we didn't know that at that point in time. >> he knew something crucial he shouldn't have known. >> he knew something he shouldn't have known because he's the one that stabbed her. >> the prosecutor looked at the reject