A former Nashville police lieutenant has been arrested on charges of theft, burglary and official misconduct.

Police say the shooter behind the 2023 Nashville elementary school attack that killed six people, including three children, had been planning it for years while hiding mental health issues from medical providers.

Details from the rich, full lives of the three adults killed Monday at a Nashville elementary school have quickly emerged.

Here’s some of what we know and don’t know about the deadly shooting at The Covenant School in Nashville.

Police say the Nashville school shooter legally bought seven firearms in recent years and hid the guns from their parents before killing three children and three adults at a Christian school.