It's worth noting hundreds of police officers lose their life a year in the line of duty: https://www.odmp.org/search/year and many more than that receive serious injuries, even permanent spinal damage: One cop was paralyzed from the neck down in Vegas protests: https://www.bostonherald.com/2020/06/14/police-officer-shot-... Retired police chief killed at 77 by looters in St. Louis: https://thehill.com/homenews/state…
According to the FBI, which publishes the data in the Uniform Crime Reports, from 1980–2018, an average of 85 law enforcement officers were feloniously killed per year.
In 2018 there were 686,665 police in the US.