Purposely mixing of terms. Mass Shootings?
The FBI defines and keeps track of mass murder events, which the define as the killing of 4 or more victims during a single or related event (not serial murder) beside the perp.
The activists and the media are purposely conflating the two.
If you look at their “guide book”, adjusting the rhetoric to satisfy your line of crap is perfectly acceptable. Or at least intimated therein:
http://s3.documentcloud.org/documents/748675/gun-violencemessaging-guide-pdf-1.pdf