Father thwarts daughter’s Columbine-style school attack after reading her diary

FREDERICK COUNTY, Maryland (NBC News) A high school senior’s plan to carry out a mass shooting at Maryland’s Catoctin High School unraveled Monday after her father read her diary and called school authorities.
“We averted a catastrophe,” said Frederick County Sheriff Charles Jenkins.
Investigators say the diary of 18-year-old Nichole Cevario detailed a well-developed plan to carry out the attack, with a set date of April 5th.
“You can see the actual escalations, the