how does he react to being sort of cornered, caught in the lie? he was backtracking and he was getting scared. reporter: on now quisenberry had admitted he visited his friend erin that day but insisted he left before anyone was shot. rick sensed that quisenberry and his story were struggling so he went to the jugular demanding he come clean and it worked. him saying he was in that house was critical. that becomes the most important thing he says in the whole statement. reporter: detective arnold now had admission number one. the interview nearly over, quisenberry had a request one of the strangest rick had ever
sister and mother were shot, ebony and her grandparents remained fearful. reporter: you must have been worried like who did this and where are they? yes. i was thinking about the safety of the kids and me. so i didn t go out much. reporter: back at the police station, detective arnold was trying to figure out his next move when his investigation caught a lucky break. a 75-year-old neat nick spotted some of air s things in a rain-soaked ditch three miles from erin s house and phoned police. empty prescription bottle and i.d. kards and paper and something else that didn t belong. tell me about this. this is a cadillac manual. reporter: a cadillac owner s manual. it stood out because it didn t seem to fit with the rest of the money mess, so why was the car manual there? and whose was it? rick arnold tried thumbing through it but the pages were soaked together. the front and the back cover
erika was it in from the very beginning. she was trying to write with my pen. she wanted to color on my notebook. i was struck by her cure i don t say qudr curiosity. i think people still wonder how she survived. i still wonder how she survived. reporter: louisville and erika s family were still consumed by two questions at the heart of it all who could commit such a horrifying crime and would the shooter ever be caught? but judith harper had faith all along that justice would be done, most of all faith in detective arnold. after all, the promise he made to solve the case was to her. he is going to see that these people were found. if it had been erin, it was
this is detective rick arnold. today s day is may 18th, 2006. reporter: a video camera rolled as detective arnold processed the crime scene honing in on clues. this drew the victim s body, the shell casing. reporter: the hard reality of death lay alside-by-side with t everyday images of young life. aaron s body in a pool of blood near af red kitty wagon, a she casing in front of a box of diapers, and the bed where erika once jumped for joy was now covered in her own blood. the blood on the sheets. the pillow and pillowcases. reporter: detective arnold noticed r something on the bed that wouldon burn through his memory throughout theur investigation. the first thing that immediately meet was the dora explorer pillow and it will blood on it. reporter: what was the w emotion when you saw that?
detective arnold was searching for answers combing the house for more clues. a closet that contains a safe. reporter: some contents apparently missing. the first thing that popped in my head was some type of a robbery. next is a cell phone. one of the first things we do is check cell phone records. reporter: phone records revealed that erin received two calls from a family friend. james quisenberry had known erin for years. police brought him in to see if he had any information that could help the investigation. you re one of the very last people to call her and talk to her by phone, which is why we want to talk to you. it was me? reporter: quiz equisenberry provided names for the officers to check out and offered to