bound and duct taped in the trunk? 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 jello to the wall. >> it's beyond our expertise and that's -- >> reporter: well, i was gonna say, how -- how well do you know computers and social media and all of that nonsense? >> we know how to pick up a phone and call tony kava and tell him that he's got a lot of information to look at. >> reporter: tony kava, who's he? >> your cave! >> by day i do it work, and i've done that for about 15 years, and then by night i fight crime, so. [ laughter ] >> reporter: you sound like a superhero. >> reporter: anthony kava's day job is i.t. supervisor for pottawattamie county.