they were okay. but halee wasn't answering her phone. and friends told heather she didn't show up to take her exam at the university. >> it's not like her to miss class. not like her to have her phone turned off. >> not like halee rathgeber to go missing. coming up, what had happened to halee. >> are you getting a sick feeling? >> i was sick all morning. it was so much anxiety. >> i just started screaming her name like, my stomach had dropped. and i was like, oh my god. where is halee? where could she be? >> i'm freaking out. i was just like i got to go find my sister, something's wrong. i don't know what's wrong, but something's wrong. >> reporter: when "on the outskirts of town" continues. e outskirts of town" continues when you need it most. it's non habit forming and powered by the makers of nyquil. new zzzquil ultra. when you really really need to sleep.