police took the shoes into evidence and never followed up on it because they never considered him a suspect. hal covering this story for "the chicago tribune." how could something like this happen? that's a piece of evidence that gets overlooked? >> yeah, the attorney for the foxes said that this is leaving the driver's license at the scene not only that because the name in the shoe on the tongue was not that legible, they were able to make it out from the notes they took at the time, but there were other clues that fit in with this that could have led them to him early. the same day it was a wellness check at his home. police went there to check and he was vomiting at that scene when police arrived and he asked them, have you found that little girl yet? this is even before they discovered the body. there was also evidence of a