Over a thousand people were killed by police in the US in 2015 according to http://killedbypolice.net/ which is more than fatalities from shark bites, airplane crashes and terrorist attacks in America combined in this recent calendar year, so comparing those with police shootings(some justified, many not) is dubious at best.
Maybe expecting to be murdered is a dramatic perspective to have, sure. Most people aren't murdered. But expecting the people who are hired and paid with tax dollars to "Protect and Serve" but instead kill, beat, or straight up steal from you(among other things) doesn't seem like something we should just accept because statistically it happens less than other things.