Pretending it is happening everyday doesn't make it true, does it?
In 2011, according to data I have collected, police officers in the United States shot 1,146 people, killing 607. Since January 1, 2011, I have been using the internet to compile a national database of police involved shootings. The term "police involved shooting" pertains to law enforcement officers who, in the line of duty, discharge their guns. When journalists and police administrators use the term, they include the shooting of animals and shots that miss their targets. My case files only include instances in which a person is either killed or wounded by police gunfire. My data also includes off-duty officers who discharged their weapons in law enforcement situations. They don't include, for example, officers using their firearms to resolve personal disputes.
http://jimfishertruecrime.blogspot.com/2012/01/police-involved-shootings-2011-annual.html
This statistic is a little old, but if you add dogs, then it's pretty close to every day.
The Kleck study shows that police shoot and kill around 600 criminals each year. Yet the University of Chicago study shows that police killed 330 innocent individuals in 1993. That means that for every two criminals killed by police, one innocent citizen is killed by police. Although I have the greatest respect for the police and how they must respond under pressure, I think that I would much rather trust an armed populace.
http://actionamerica.org/guns/guns1.shtml