. >> daniel bartelt had confessed against a violent attack against a woman in the park. could also be guilty of something far worse. >> did you leave that interview having any doubt that dana was the killer? >> none whatsoever. >> daniel told investigators that on the morning that jessie was killed, he was in a park reading a book and when they checked the security cameras,. >> we found video that put him there. >> but that did not mean that daniel was innocent. detectives decided to search the park, combing through more than a dozen garbage pins. hoping to find anything that linked daniel to jessie's murder. >> in one garbage, can this cereal box full of ligature's. >> ropes that were very likely the murder weapons used to strangle jessie, plus a whole lot more. bloody sanitizing wipes, tape, shoelaces. >> i guess he didn't believe that we would have made the effort to go through the garbage. to find anything. >> police sent the evidence for testing, and forensics showed that both and daniels dna were on the ropes felt in the park. the detective shared the incriminating