Murder, Mayhem, Terror and Chaos

The Timeline (approximate)

10:10 a.m.   The suspect is seen in surveillance footage shooting through the front door and entering the building.

10:13 a.m.   Nashville Police receive the first call of an active shooter inside Covenant School.

10:18 a.m.   Timestamped surveillance footage from inside the school shows the shooter armed with multiple weapons walking down a hallway. Wearing black and white Puma shoes.

10:21 a.m.   The first responding officers arrived on campus, law enforcement officials said.

10:23 a.m.   The first officers enter the school, according to investigators. Police body-worn camera footage shows officers going room-to-room looking for the shooter, clearing classrooms and speeding past at least one body in a hallway.

10:24 a.m.   A team of five officers arrived on the second level and followed the sound of gunfire toward the shooter, according to police body-worn camera footage.

10:25 a.m.    Officer Rex Engelbert sees the shooter and fires about four rounds with an assault-style rifle. His bodycam footage shows the attacker collapsing. Two officers engaged the suspect, and the suspect is reported down, according to law enforcement officials.