You Professor?...hahahaha...a 4th grade assistant sounds more like it, because all the Professors I have known already understand the terms, and do not need to ask the question in the first place. Elementary school children know these terms, because the news media uses these terms on a regular basis and they are so common they need no explanation!
Truth comes from many places and you aren’t anyone I would take instruction from, because you are insane...promoting yourself like you are something important with the right to criticize something you know nothing about vs elementary school children who could explain it to you.
If you had Googled, you would have found a correct article explaining both terminologies. I do not owe you an explanation of any kind, however maybe this article may help your lack of knowledge of normal media terms that have been in existence for decades:
http://www.crimemuseum.org/crime-library/serials-killers-vs-mass-murderers
All the knowledge you will get from me....
All the knowledge you will get from me....
Yet, you follow this with another link. Not a man of your word, are you?
You won't understand this, so I will post it for all others to read.
In Post 31, Kackikat told Protect the Bill of Rights that, "Mass Shooting is a criminal justice term..." After several posts, Kackikat has yet to provide a link to the term "MASS SHOOTING". And, he doesn't know the difference between "more than 3" ( >3 ) and "3 or more" ( ≥3 ).