The suspect was grieving the death of their mother, bullied at school after being hit by a drunk driver and became fixated by mass shooters, police said.

Trinity Shockley from Mooresville High School was charged for planning an attack on the school after authorities found a collage of mass murderers in the student's room.

Trinity Shockley, 18, was arrested following an FBI tip, where investigators said she planned to use an AR-15 to shoot up Mooresville High School southwest of Indianapolis.