WASHINGTON 

Hundreds of Nashville-area students walked out of their classrooms Monday and marched to the Tennessee State Capitol in a rally to mark one week since a deadly school shooting in the city left three students and three adults dead.

Mobilized through March for Our Lives, a youth movement launched by the survivors of the 2018 Parkland school shooting in Florida, the students demanded tighter gun control laws.

The protestors chanted “Ban assault weapons!” “Do your job!” and “Save our children!"

Meanwhile, the Metro Nashville Police Department released an update on the investigation into the deadly shooting at the Covenant School, saying that the shooter, 28-year-old Audrey Hale, fired 152 rounds of ammunition.

It said the Nashville shooter acted “totally alone” and added that the “motive for Hale’s actions has not been established and remains under investigation.”

“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,” it added.

Hale, a former student at the school who identified as a transgender person, was killed during a shootout with a five-member police team on the second floor of the school, which is associated with a church, according to authorities.