Does searching for the term constitute support or opposition to greater gun control?
People in your area may support it, but in other areas (like mine) they may be less apt to trade liberty for security.
http://www.google.com/trends/explore#q=%22gun%20violence%22&...
or "gun deaths"
http://www.google.com/trends/explore#q=%22gun%20deaths%22...
And yet both of those show the same dramatic spike in interest.
http://www.google.com/trends/explore#q=2nd%20amendment&c...
And "gun rights"