Officers with the Metro Nashville Police Department responded ... MNPD is investigating this mass shooting along with the TBI, FBI, ATF and THP. It is an ongoing investigation.

NASHVILLE, Tenn ... The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) also responded to the shooting.

For an important perspective on that, Amna Nawaz spoke with… Authorities are still searching for a motive in the shooting at a school in Nashville, Tennessee, that left six people dead.