We recently noticed while scanning the internet for news to write about that the Charleston SC shooting has lost the attention of the American population in a mere 2 days.  We noticed no major news outlet was reporting anything on the featured area of their websites June 21st 2015, just 4 days after the shooting.
Google Trends Data
Google trends is an extremely good indication of public interest in any given subject. It tells you what people are searching for on the internet. It only works on issues that are major enough for its engine to detect.  We’re going to look at the google trend data for the last 3 mass shootings.  Charleston SC, Sandy Hook, and Aurora Colorado.
Charleston SC Shooting
Public Interest in the Charleston SC Shooting really only lasted 1 day, but there is enough of a “bump” in the graph to say that there was interest on the 18th and 19th.  This graph might look similar to the other two, but what you have to pay attention to is that this graph is measured in days, not weeks or months, that is how fast America lost interest in this story.
Sandy Hook Shooting
As you can see, the interest in the Sandy Hook shooting lasted 3 months.  It is detected from December 2012 all the way to February 2013.  This is quite the difference from the Charleston SC shooting where public interest only lasted 2 days.  Sandy Hook was the shooting that gained the most public interest, for the longest period of time, out of all 3 shootings.
Aurora Colorado Shooting
Interest in the Aurora Colorado shooting lasted for roughly 1 and 1/2 months.  Peak interest happened in July 2012 and dwindled through August.  Notice with both Aurora and Sandy Hook there was no sudden lost of interest after just two days as there is with the Charleston SC Shooting.
What's the Reason for This?
One Key factor in this debate will be the US Media.  Regardless of what race you are, or what side of the issue you consider yourself on, all Media outlets did the exact same thing.  People can’t blame any single news outlet for this since they are all guilty of the same thing, all media would have to be blamed.
The screenshots you see to the right were taken June 23rd 2015, less than 1 week after the shooting.  None of them have the story or anything about the story on the featured article section. Fox news has it beneath the featured section, but this about the Confederate flag issue.