sheriff charles jenkins says she wrote about the plan in detail and even compiled information about the school's emergency procedures. the sheriff and some community members think the father did the right thing by turning his daughter in. >> that's exactly what he should have done, yeah. he was a good dad really. yeah. you can't let something like that go without taking some kind of action. >> officials say that she acted alone and never took a weapon or explosive device to the school. she's undergoing a mental health evaluation now and once released she will face several charges. >>> right now the family of a 15-year-old girl needs your help. no one has seen heaven shamte since saturday. heaven is 150 pounds with brown eyes and black hair. she was last seen on 30th street just off nailor road. >>> since march 19th d.c. police have shared information on 11 missing teenagers on twitter. 6 have been found and 5 are missing. >>> right now you've heard an inaccurate post claiming 14 girlsen in the nbc washington app we have ways you can help. search missing girls. >>> if you are in the othe

. >> you talked about books -- >> reporter: frederick county sheriff charles jenkins has no doubt that nichole cevario would have carried out a deadly attack at catoctin high school next wednesday if her father hadn't read her diry and notified school officials. about a week ago, the father made a disturbing discovery just days before he read his daughter's diary. >> then he started to see things over a period of time that weren't usual for her. and i guess, i think at one point, he might have fou backpack, questioned her about it. she gave him a reason, he kept it in his mind. when he saw the diary, tied it together, thought this is for real, i need to report this. >> reporter: when deputy searched the home, they found bomb-making material, ammunition and a 12-gauge shotgun that she purchased legally. >> we believed she had the intention to saw the barrel off, which would have made it much more deadly. >> reporter: jenkins said excerpts from her diary folk ud on columbine and newtown. >> she looked at those as events and some of the shortcomings in those events and also looked at the

. >> reporter: sheriff charles jenkins who lives near catoctin high said while it may have been a tough decision for the father to turn his daughter in, that decision saved lives. >> i mean, just imagine if it were your 18-year-old daughter, knowing what the ramifications were, to go out and tell authorities that your child's planning on carrying out something like this? you have to really weigh into the conscience on that. >> well, that's exactly what he should have done. yeah, he was a good dad, really. yeah, you can't let something like that go without taking some kind of action. >> reporter: cevario and an honor student at catoctin high, she had never had any trouble with pole until this. >> we felt this was going to be carried out. there's no doubt in our minds that we averted a disaster up there. i've never seen anything like this, to be honest with you. >> reporter: now, cevario remains in a local hospital under mental evaluation. once released, she'll be arrested and charged with several felonies. in addition to being an honor student, she was also taking criminal justice classe