and here's what detectives doty and avis found on that phone.n on christmas eve, 2012. >> was that not when her car was actually missing? >> yeah, it had not been recovered until january 2013. >> so we thought, that's weird the police could not find, it dave did not know where it was, but somehow liz was able to take a picture of it. >> that was not all. remember that threatening photo cari emailed to dave, of a woman bound and duct taped? that photo was linked back to liz, which made them wonder, was it possible those wild and scary electronic messages all sent in cari's name were really sent by liz? tricky, even for a computer whiz to nail that bit of jell-o to the wall. >> it is beyond our expertise, and it's when you gotta say -- >> how well you know computers, social media, that nonsense? >> made us want to pick up a phone, call tony carver, and ask if he has any more information? >> by day, i do information work and i do that for years. and by night, i fight crime. >> [laughs] , you sound like a superhero. >> anthony carva's day job was i.