Footage from prosecutors shows aftermath of shooting of Tyrin Johnson, 20, shot and killed by national guard in July

Tennessee national guard troops in Memphis last summer trained their handguns on a man as he lay dying on a sidewalk after a guard member shot him in the back, video released Monday by county prosecutors shows.

A Memphis police officer can be heard in the footage from an officer’s body camera calling for an ambulance and then asking the troops: “Hey, you guys got a medical kit or anything?”