Audrey Hale, the 28-year-old transgender artist turned school shooter who killed three children and three adults at the Covenant School in Nashville last week, plotted the attack for months, police revealed Monday. Hale fired 152 shots during the attack, police said, 126 from 5.56 rifles and 26 from a 9mm handgun. Police had recovered two rifles and a pistol from the scene and several more at the suspect's home, including a sawed-off shotgun. "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,...