No, most of the time it's cop being reckless that causes people to die unnecessarily.
Though I guess you also have the Uvalde end of the spectrum with coward cops who won't attempt to stop a gunman if it puts their personal safety at risk.
The problem is most LEO depts do not want the best of the best or intelligent cops; they actually have tests where if you score too high, police won't take you, because police depts want people who do not question authority and do not attempt critical thinking about Constitutional issues, just beat cops who do what their bosses say, regardless of Constitutionality.
If a personal is too intelligent, they might question internal dynamics and actions of the police, and the Thin Blue Line brooks little to no deviation from certain narratives.