reporter: on june 30th, more than a week after investigators searching for vanessa guillen found a suspicious burn site and the remnants of a black box, contractors installing offense in the same location stumbled upon something even more sinister. investigators have found partial human rains, about 25 miles southeast of fort hood. most of the investigative work has been happening that way. it reporter: was 69 days after vanessa disappeared. a man who is out digging holes in this area hit cement. and when he hit cement, he sees what he thinks is human hair. that is such a disturbing discovery. it s tragic. so she i. d. calls you and tries to do what?
they just started a movement. one families tragedy unites a sea of strangers. and more secret spell out. coming up, outrage. and then an outpouring. this kicked off the hashtag, i am vanessa guillen. it was just flooding social media channels. reporter: stories of what some call the man s world of the military. i told kate, you really need to cut that out. and he said, why, what are you going to do about it. and in my mind i realized, i can t do anything about it. that was the lowest point for me. reporter: dateline continues. inophilic asthma that can mean less oral steroids. not for sudden breathing problems. allergic reactions can occur. get help right away for swelling of face, mouth, tongue, or trouble breathing. infections that can cause shingles have occurred. don t stop steroids unless told by your doctor. tell your doctor if you have a parasitic infection. may cause headache, injection site reactions, back pain, and fatigue. ask your asthma specialist about a nunor
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 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
When a soldier vanishes from Fort Hood, her family do everything they can to bring attention to her disappearance; Secretary of the Army Ryan McCarthy speaks.
daughter what was wrong. [speaking spanish] reporter: now, a year later, vanessa had gone off the family radar. as the days past, her silence nagged at myra. of course, she could just be busy with work. still, it wasn t like vanessa to disappear. the problem was, we are to look for her? for who it is one of the largest army installations in the world. reporter: jasmine caldwell reports four kcen tv on fort hood.