During the concert, people signed condolence cards for their families as well as a get well card for the injured deputy, Mark Harris.
Organizers say the turnout says a lot about the community and also, rock fans.
"Rockers, even though sometimes we are all hellraisers -- and we are hellraisers -- we do have respect for law enforcement and we want them to know we appreciate the sacrifices they make every day," said Program Director of 105.1 and 107.1 Rick Roddam.
Several bands donated their time and talents for the concert, including three that have law enforcement officers as members.
The radio station's program director says the stations got the idea from a law enforcement officer, who called them the day after the shootout.