Relatives of the victims attended a news conference in which Linder named Caldwell as the suspect. All other leads had dried up by 2004, when DNA was discovered on evidence gathered at the crime scene, Linder said. But comparing that DNA against an FBI database of known criminals yielded no results, leaving authorities frustrated yet again. After DNA was obtained voluntarily from the brother, it was analyzed by the Montana State Crime Lab to eliminate him as a suspect. Wallis added other circumstantial evidence including "unspecified behavior" by Caldwell connected the suspect to the crime scene, but he declined to offer additional details.

Source: Fox News March 25, 2019 20:22 UTC