It is a good thing for unwanted folks to be fearful, or rather, respectful of your pets. My furry children tend to look to some as imposing. How they really are is up to my discretion to disclose.
Would I ever leave the house with one of the girls tied up? No. If I am playing with them out back, one does have to be on a very long cable as she tends to be distracted by squirrels, birds, moles, etc. and will run off. Mostly, I don't tie it to anything, but keep it underfoot if I need to stop a pursuit.
But, we're not talking about me. Based on the information provided and the alleged circumstances, the value of my loved ones' life are far greater than the value of a fukk up who should have walked away. Again, if this transpired as stated, he doesn't deserve a badge, much less a license to carry a gun.
My girls give me joy and laughter and comfort and warmth and sing to me. If one person took that away out of maliciousness and temper and ego, I'd hope that hell holds a special place for him and jail, a cozy little spot. At the very least.