She'd have to go through five spent shells before the cylinder would bring the good cartridge back into firing position.
Investigators said there were two spent shells in its five chambers.
The prosecution offered testimony from a police officer who described finding more than 150 spent shells at the scene.
One of them fired his gun over their heads by only a few inches and spent shells clattered to the ground.
The police recovered 33 spent 9-millimeter shells at the house.
They also recovered two spent 9-millimeter shells, reports show.
The suspect's pistol had three live rounds left and three spent shells, according to the police.
Mall workers said they had found 60 spent shells from an AK-47 assault rifle near the body.
He bent down and picked up the two spent shells from the carpet, sliding them into a pocket in his jeans.
There's also six spent twelve-gauge shells on the ground on the other side of the rock.