sheets. if those old samples can be found and if they haven't been ravaged by time, scientists can perform dna testing. since lowery is out of prison, he can't demand a test. he must ask for permission from the current riley county prosecutor bill kennedy. >> i remember distinctly we're out on the front steps of the courthouse having a five-minute conversation, and his response to my request was, if you think this guy didn't do it, let's get it tested. i'll help you. >> in this case, there was a clear, what i felt, yes or no. and it could set the question to rest. it wasn't a legal question. it was a right-or-wrong question, and it seemed to me to be the right thing to do. >> there's just one little problem. no one knows where the evidence is. >> the evidence custodian at the time did a search and fairly quickly concluded they didn't