Would better training prevent police killings?

The case of Derek Chauvin, the former Minneapolis police officer convicted of murdering George Floyd, as well as several other high-profile officer-involved shootings, have once again intensified the debate over how to reduce the number of people killed by police.

Commonly suggested solutions range from incremental measures, like new laws to increase police accountability, to more radical responses, like defunding or even abolishing the police. One of the most frequently proposed reforms is changing the way police are trained so they are less likely to respond to incidents without using...