From your link:
Carroll County Sheriff Tobe Leazenby said the witness saw the man walking near Delphi, about 60 miles (100 kilometers) northwest of Indianapolis, but only recently met with an FBI sketch artist to provide facial details for the rendering released by State Police. Leazenby said he cannot discuss where the witness saw the unidentified man, who authorities consider the main suspect in the slayings of 14-year-old Liberty German and 13-year-old Abigail Williams. He said the witness saw the man around the time the girls were killed.
I muse RL was the eyewitness...and everything that happened to him, including the 11 hour search of his property, was a result of that. LE said he stopped cooperating at some point. He always seemed quite scared/nervous to me in interviews. Rightfully so, especially if he had face to face contact, replete with threats? Just musing....