OK, here are the facts...
It's strange but based on statistics, the most recent being 2010, there were 8,775 murders committed by firearms in the U.S. What is the reason CNN news and the other news media outlets are not covering all of these other killings with a ton of cameras like they do in these once in a while senseless massacres?
Are the lives lost in bulk more important than only one person being killed on some dark lonely street? As long as the news media continues to treat these mass killings with the attitude that these murders are "special", these senseless killings will continue to take place and happen more frequently.
The news media loves murderous crimes with lots of victims.