There's no doubt he did the right thing, although I can only imagine how hard it would be to call the police on your own child! 

He saved many lives by doing so, including his 18 year old daughter Nichole Cevario, who included her own death in her plan according to WNEM. In Cevario's journal was a planned out attack, and weapons including guns and bomb making materials were found in her home. Authorities say that Cevario had been planning this attack on Catoctin High School in Maryland for months. Frederick County Sheriff Charles Jenkins said that he had "never seen anything like this". The photo of the young woman has not been released, and she is undergoing a psychiatric evaluation.

 

Photos of evidence are from the Frederick County Sheriff's Office, MD Facebook page.