Liberty German's grandfather, Mike Patty, said the girls phones were "pinging around town".
Since the girls weren't in town, did the perp take their phones with him into town after the murders?
"The girls haven’t answered their phones since around the time they went missing.
“Missing, abducted, we don’t know for sure,” said Patty.” The cellphone has been pinging around town – and here there is a cellphone tower – but the ping was last noted around five to six hours ago. And they say the phone is now dead.”"
http://wlfi.com/2017/02/14/community-continues-to-search-for-missing-teens-in-carroll-county/[/QUOTe
From what i have seen, there are 3 cell towers that form a triangle in delphi and the bridge is on the outer edge of that signal triangle. My opinion and my opinion only is that the phone was pinging btwn the two that were closest to the bridge.