The Pima County Sheriff's Department has arrested a 19-year-old on suspicion of leaving a firearm unattended, allowing for a ...

1380 - Hand guns are known across Europe. 1400s - The matchlock gun appears. Before the matchlock, guns were fired by holding a burning wick to a "touch hole" in the barrel igniting the powder inside.

"Mendez Berry was holding what deputies believed to be a firearm," the DOJ said. But it was later determined the man was ...