Nashville shooter's home search reveals suicide note and weapons.

A search warrant executed at the home of Audrey Hale, the shooter who killed six people at a Nashville school last week, revealed a suicide note, additional weapons and ammunition, and journals related to "school shootings; firearm courses." The investigation shows that Hale fired 152 rounds in the attack, which was planned "over a period of months." Police continue to work to determine a motive for the attack, but it's believed the victims were fired upon at random. The shooting renewed debate over American gun violence, access to firearms, and school safety.