In 2008, an 11 year old boy and the family's 57 year old housekeeper were found brutally murdered inside of a family home in an affluent neighborhood of Omaha, Nebraska. Despite multiple eyewitnesses seeing the actual person that committed the murders, because he was unknown in the area, these murders went unsolved for 5 years. In 2013, 2 more brutal murders occurred with a link to the first set of murders that would blow the case wide open and finally bring the killer to justice.
References & Resources:
Pathological by Henry Cordes & Todd Cooper of the Omaha World-Herald
https://www.nbcnews.com/dateline/video/full-episode-haunting-1054578755598