motive and found something about her friend daniel that sent chills throughout the community. here's the conclusion of "friends until death." >> daniel bartelt confessed to a violent attack against a woman in a park. but after police spoke with them, they realized he could also be guilty of something far worse. did you leave that interview having any doubt that dan was the killer? >> none whatsoever. >> daniel told investigators 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 didn't mean daniel was innocent. detectives decided to search the park, combing through more than a dozen garbage bins hoping to find anything that linked daniel to jessie's murder. >> in one garbage can this cereal box full of ligatures. >> ropes that were very likely