people? they are searching their company areas. they are searching the installation. it s like she vanished into thin air. i want her back! this has turned, the story. her family said she was being sexually harassed by a superior. this kicked off the hashtag, i am vanessa guillen. want my sister. women are coming forward saying that you were sexually harassed in the army. enough is enough. we need to change this. the trends are going the wrong way, it s really tearing at us as an institution. a man who is out digging holes sees what he thinks is human hair. miracles can happen, i will say, please don t let it be hello and welcome to dateline. vanessa was living her dream while keeping close to airtight knit family and serving in the military. then she disappeared. as soldiers search for the missing soldier, their quest for answers would shine and spotlight on an ugly truth. but would it lead them to vanessa? here s voices for vanessa . i couldn t
want my sister. women are coming forward saying that you were sexually harassed in the army. enough is enough. we need to change this. the trends are going the wrong way, it s really tearing at this as an institution. a man who is out digging holes sees what he thinks is human hair. miracles can happen, i will say, please don t let it be hello and welcome to dateline. vanessa was living her dream while keeping close to airtight knit family and serving in the military. then she disappeared. as soldiers search for the missing soldier, their quest for answers would shine and spotlight them ugly truth. but would it lead them to vanessa? here s voices for vanessa . i couldn t believe this is happening to me. it was the scariest part of my life because i was alone. reporter: so many were quiet for so long. i was harassed, sexually assaulted, raped and physically threatened. this man that i physically trusted, i felt violated and stupid. reporter: but
Thin air. I want her back this has turned, the story. Her family said she was being sexually harassed by a superior. This kicked off the hashtag, i am Vanessa Guillen. Want my sister. Women are coming forward saying that you were sexually harassed in the army. Enough is enough. We need to change this. The trends are going the wrong way, its really tearing at us as an institution. A man who is out Digging Holes sees what he thinks is human hair. Miracles can happen, i will say, please dont let it be hello and welcome to dateline. Vanessa was living her dream while keeping close to airtight knit family and serving in the military. Then she disappeared. As soldiers search for the missing soldier, their quest for answers would shine and spotlight on an ugly truth. But would it lead them to vanessa . Heres voices for vanessa. I couldnt believe this is happening to me. It was the scariest part of my life because i was alone. Reporter so many were quiet for so long. I was harassed, sexually a
information with us was because they didn t want to be critiqued or questioned. reporter: major general donna martin conducted the criminal investigation division, which investigated vanessa s disappearance. i think there is an investigation misperception out there, that because we see some of these shows on tv, that evidence just turns up. it doesn t happen like that and we are life. how important was this investigation to you? she says behind the scenes, the investigation was more intense than anyone realized. she will take us inside it next. coming up they are searching their company areas, the installation, they are looking everywhere for vanessa. frustrating hunt for clues. any blood evidence? there are no signs of blood. no signs of struggle? no. it s like she vanished into thin air. almost. when dateline continues. shop appliances now backed by the lowe s price promise. are you tired of clean clothes that just don t smell clean? what if your clothes could s
reporter: is it possible they were doing all this for investigation but they were holding it because that s how they operate it? and they aren t going to share critical details in investigation? with a missing person case, you share information with the family. and i feel the reason they didn t want to share information with us was because they didn t want to be critiqued or questioned. reporter: major general donna martin conducted the criminal investigation division, which investigated vanessa s disappearance. i think there is an investigation misperception out there, that because we see some of these shows on tv, that evidence just turns up. it doesn t happen like that and we are life. how important was this investigation to you? she says behind the scenes, the investigation was more intense than anyone realized. she will take us inside it next.