The first thing he did was to fire about 15 administrative staff members.
Harris fired about 6 feet in front of Cooper and forced him to take cover.
He said the men fired about four or five times before running down a stairwell at the end of the hall.
"But from phasers fired at a power level about ten percent of normal."
At the beginning of the century the average well-trained soldier could fire about one round per minute.
The guns could fire about ten to fifteen rounds per minute.
Two gunmen appeared on the road, a friend said later, and fired about 30 bullets into the car.
In the next few months, he says, he will have to fire about a thousand of them.
He said the machine fired pitches at about 50 miles an hour.
He selected one and fired about 300 rounds closing at short range.