oh, it had more than started for kenia monge, swallowed up by, well, whatever it was, some dark presencenting the happy, tipsy streets of lodo. >> kenia's family starts to worry. had that dark presence, whatever it might be, come for their own daughter? >>> coming up -- >> something is wrong. something is wrong. >> that's when i went into high alert. >> when "chilling connections" continues. alert. >> when "chilling connections" continues. everything i buy. and last year, i earned $36,000 in cash back. which i used to offer health insurance to my employees. what's in your wallet? >>> welcome back to "dateline extra." she was known as the responsible one, so when 19-year-old kenia monge vanished after a night of clubbing, her friends and family were concerned. no one seemed to know where she was, but they're about to get a clue, kenia's cell phone turned up, and on it her father would discover a mysterious text from a stranger. who was he and could he lead them to kenia? here again is keith morrison. >> april 1st, 2011, dawn in denver, colorado, bright, springlike, and for the friends of

oh, it had more than started for kenia monge. swallowed up by, well, whatever it was. some dark presence haunting the happy dipsy streets of lodo. >> coming up, kenia's family starts to worry. and that dark presence, whatever it might be, had it come for their own daughter? >> something is wrong. something is wrong. >> that's when i went into high alert. >> when "chilling connections" continues. n "chilling connectio" continues. shield℠ annuities from brighthouse financial allow you to take advantage of growth opportunities with a level of protection in down markets. so you can be less concerned about your retirement savings. talk with your advisor about shield℠ annuities from brighthouse financial, established by metlife. from brighthouse financial, super emma just about sleeps in her cape. but when we realized she was battling sensitive skin. we switched to tide pods free & gentle. it's gentle on her skin and out cleans the other free and clear detergent. dermatologist recommended. it's got to be tide. >>> welcome back to "dateline extra." she was known as the respons

the last person known to have seen kenia monge alive before she disappeared. nge behavior had ramped up detective gurule's suspicions even though the evidence did not warrant an arrest. but now weeks after kenia vanished gurule had two problems. kenia wasn't the only one who was missing. so was travis. >> he was gone. i couldn't find him anywhere. i was scrambling to find him. i was checking news. i put out a teletype online for law enforcement saying, you know, you find any bodies give me a call. >> this guy was that dangerous in your mind, that there could be just more -- >> i was calling everybody. i wanted to find out where he was. >> reporter: days passed, then a week. no sign of travis. detective gurule was now working the case almost 24/7. even his wife was involved. >> there was nights where i'd jump out of bed and it would scare her. i'd jump out of bed, grab the phone ring. she'd say did you hear the phone ring? i'd say i'm leaving myself a message because i need to do this. he she said i'd talk in my sleep about it, kenia's name or travis's name. she