What we know about the Covenant school shooting in Nashville

Six people were killed at a small, private Christian school just south of downtown Nashville on Monday after a shooter opened fire inside the building of about 200 students, police said.
Police received a call about an active shooter at The Covenant School — a Presbyterian school — around 10:15 a.m. Authorities said that about 15 minutes after that call to police, the shooter was dead. The remaining students were ferried to a safe location to be reunited with their parents.
Here’s what we know and don’t know about the...