He said the Covenant School was singled out for attack but that the individual victims were targeted at random.
[1/5] A still image from surveillance video shows what the Metropolitan Nashville Police Department describe as mass shooting suspect Audrey Elizabeth Hale, 28, entering The Covenant School carrying weapons in Nashville, Tennessee, U.S. March 27, 2023.
Also shot dead were staffers Mike Hill, 61, a school custodian, Cynthia Peak, 61, a substitute teacher, and Katherine Koonce, 60, listed on the Covenant website as "head of school."
"We have to do more to stop gun violence," Biden said at the White House.
Monday's violence in Nashville marked the 90th school shooting – defined as any incident in which a gun is discharged on school property – in the U.S. so far this year, according to the K-12 School Shooting Database, a website founded by researcher David Riedman.