Many years ago the same ilk started using the term “assault weapon” to describe scary looking semi-automatic rifles. It stuck.
Now they are trying to confuse a well defined “mass murder” term with “mass shooting,” which is not well defined.
Mass Murder is defined by the FBI as: Mass murder (sometimes interchangeable with “mass destruction”) is the act of murdering many people, typically simultaneously or over a relatively short period of time. The FBI defines mass murder as murdering four or more persons during an event with no “cooling-off period” between the murders. The four murdered excludes the murderer.
Google “mass shooting definition.”
One reason they are backing off this number so quickly is because someone produced a chart showing who these siupposed attacks have skyrocketed under Obama compared to other presidents. Once it makes O look bad, back off!