Families of Libby and Abby "cautiously optimisitic" as Indiana State Police investigate connection between Colorado arrest and Delphi murders

Daniel Nations was arrested Monday after police in Colorado Springs say he threatened several hikers with a hatchet near the same trail where a man was murdered two weeks ago. Indiana State Police are calling Nations a “person of interest” in the murders of Libby and Abby, but it’s a title they say has been used many times over the past several months and has yet to lead to an arrest.