car was broken into at work last week. reporter: his cadillac, the break-in happened on may 17thth, a few hours off erin harper was found dead. reporter: i asked him where do you work? he said he was a pharmacist at a drugstore where she sell prescription drugs. it hit me the manual was with the stuff now. reporter: detective arnold had a working theory and it went like this. someone broke into a shiny cadillac parked outside of an indiana walgreens. the car happened to belong to the store s pharmacist. the thief grabbed the owner manual and tossed it into his own car and went to erin s house where she and erika were shot and erin s prescription ills pills and credit cards were stolen and according to rick s theory the person rushed away from the house, threw the pill bottles and credit cards into
using bogus names. and on the security tape, rick looked closely and saw the man in the baseball cap leaning through the window of the enclosed pharmacy section, seemingly checking out names from pill bottles. over and over detective arnold stared at the grainy walgreens tape. the man in the baseball cap looked familiar. one person looked like quisenberry. as in james quisenberry, earon s family friend who phoned her minutes before the murder. earlier, he told the detective how much he wanted to help the investigation. help you find whoever it is. rick wasn t buying any of it now. quisenberry had become a prime suspect, though rick wasn t ready to arrest him. not yet. not until he had the other man. but that wouldn t be easy. although there were two suspects in his sights, the mystery man was not in focus. how clear is the image of the second guy? it s not very clear.
and he said they didn t look like they were regular shoppers at our walgreens. most of our prescription customers are regular customers. he went on to tell me they had come back to the pharmacy and tried to obtain prescriptions using bogus names. and on the security tape, rick looked closely and saw the man in the baseball cap leaning through the window of the enclosed pharmacy section, seemingly checking out names from pill bottles. over and over detective arnold stared at the grainy walgreens tape. the man in the baseball cap looked familiar. one person looked like quisenberry. as in james quisenberry, family friend who phoned her minute before the murder. earlier, he told the detective how much he wanted to help the investigation. find whoever it is. rick wasn t buying any of it now. quisenberry had become a prime suspect, though rick wasn t ready to arrest him. not yet. not until he had the other man. but that wouldn t be easy.
would be in a drainage ditch in louisville, kentucky. he said i don t know, but my car was broken into at work last week. reporter: his cadillac. the break-in happened the night of may 17th, a few hours before erin harper was found dead. i asked him, where does he work? a pharmacist at walgreens. bells and whistles go off. he works at a drugstore. there s a reason the manual was with the stuff. reporter: he had a working theory and it went like this. someone broke into a shiny cadillac parked outside an indiana walgreens. it happened to belong to the pharmacist. the thief grabbed the owner s manual and tossed it into his own car. he then went to erin s house where she and erica were shot and erin s prescription pills were stolen. then, according to rick s theory, the person rushed away
that s what i m saying. you were in the house. that s what i want to know about. reporter: how does he react to being cornered, caught in a lie. backtracking. getting scared. i never told you i used to be over all the time. that s what i m saying. reporter: now, he was admitting he visited his friend, erin, that day. he insisted he left before anyone was shot. rick sensed that the story was crumbling, so he went for the jugular, demanding he come clean. and it worked. i saw him go in there and i was behind him. pow, pow, pow. i heard gunshots. him saying he was in that house was critical. that is the most important thing he said. he now had admission number one. the interview near le over, he had a request, one of the