[Ans] At which university did national guard troops kill 4 student protestors on this day in 1970?

Killed :
	Jeffrey Glenn Miller; age 20; shot through the mouth; killed instantly
	Allison B. Krause; age 19; fatal left chest wound; died later that day
	William Knox Schroeder; fatal chest wound; died almost an hour later in a hospital while undergoing surgery
	Sandra Lee Scheuer; age 20; fatal neck wound; died a few minutes later from loss of blood