Audrey Hale planned her attack on The Covenant Christian school in Nashville, Tennessee, for months before it occurred on March 27, police said on Monday.
“In the collective writings by Hale found in her vehicle in the school parking lot, and others later found in the bedroom of her home, she documented, in journals, her planning over a period of months to commit mass murder at The Covenant School,” said the Metro Nashville Police Department in a statement.