As Carter implied, if the killer lived, worked or was familiar with Delphi for any other reason, a cellphone ping at a local tower on Feb 13th would only place him somewhere in Delphi amongst every other person in town that day - assuming he had a cellphone with him, turned on. As we know from Libby’s grandfather’s early comment about her cellphone “pinging around town”, a cellphone pings to different towers even when it’s not moving.
Public, outdoor crime scenes are always amongst the most difficult for police to process and I’d assume a place the size of Delphi also didn’t have a lot of CCTV. In larger cities traffic lights record traffic and many more home owners plus big box stores utilize CCTV so it’s easier for LE to identify when a suspect is being untruthful about his whereabouts.
So unless the killer outrightly denied he was in Delphi while his cellphone pinged there or his vehicle was captured on CCTV, I think the task force is left with seeking tips from anyone who can provide specific incriminating information about a suspect who also resembles the video or photo. Given local, county, FBI, state, Georgia state police have all been involved in this investigation, I’m certain no evidence within the realm of police investigation has been overlooked.
It’s hard to believe that PC announcing the “change in direction” was held almost a year ago. Rather than Carter dropping hints or clues to a known suspect, I continue to believe the words spoken directly to the killer by him were purposely intended to shake up, provoke and cause suspicious behaviour in somebody unknown, leading to a tipster calling in a tip about someone who they already had a bad feeling about, just not enough to have called in before considering the suspect was initially described as an older man. But as all these months have passed, I’m becoming doubtful that tactic was successful.
