Kent State Redux, Guard Ordered to Fire

A tape of the killings at Kent State has been forensically analyzed using current technology and what most believed along has been confirmed. The guardsmen were ordered to fire.

The Ohio National Guardsmen who fired on students and antiwar protesters at Kent State University on May 4, 1970 were given an order to prepare to shoot, according to a new analysis of a 40-year-old audio tape of the event.
"Guard!" says a male voice on the recording, which two forensic audio experts enhanced and evaluated at the request of The Plain Dealer. Several seconds pass. Then, "All right, prepare to fire!"
"Get down!" someone shouts urgently, presumably in the crowd. Finally, "Guard! . . . " followed two seconds later by a long, booming volley of gunshots. The entire spoken sequence lasts 17 seconds.

Details of the analysis are in this fascinating piece.