That was the department protocol, not setting up a perimeter. I'm of the opinion that you haven't read it because there's no conflicting information, it's a cut and dry police report and paints Peterson in an incredibly bad light.
Edit: active shooter response for BCSO was and still is all available officers make contact with the shooter, there's no age opt out.
Edit 2: and in your scenario you'd rather have an armed maniac in a school full of unarmed kids, and since you read the report you know the 3rd floor situation, just because the good guy with a gun is 60? Since he didn't go in, unarmed teachers lost their lives showing more bravery than Peterson because they tried to stop Cruz while Peterson hid by the freshman wing.
That was the department protocol, not setting up a perimeter. I'm of the opinion that you haven't read it because there's no conflicting information, it's a cut and dry police report and paints Peterson in an incredibly bad light.
Edit: active shooter response for BCSO was and still is all available officers make contact with the shooter, there's no age opt out.