Based on what? There is zero information about what happened.
Having been bystander in a similar situation, the LEO weaponry is not equipped to take down an injured bull. In my situation, the bull’s owner had to shoot him with a rifle. The LEO was happy for the guy to drag out his rifle and take down the hurt bull after they had emptied their pistols to no avail.
That was 40 years ago when most non-city people, including the cops, had enough sense to understand a situation.
I can see these “greenhorn” Deputies seeing the old guy pissed off about losing his bull and with a gun telling the Deputies “he’ll take care of it” and just like the standard dog thing, the Deputies shoot first and ask questions later.