Quick qeustion, what is your expertese in knife fighting from? Military training? Living in bad parts of town? Please give examples to support your strong claims about "how knives work".
Lastly playing word games of is it a mass slaying, or a spree killing is honestly unworthy of you. Do you wish to find truth, or blow smoke?
Lastly you dodge the question posed, how will the weak, and disabled be protected?