The confusion was over whether or not there really was indeed a shooter.
Sergeant John Spragins, with the Wichita Falls Police Department, says Sheppard officials contacted them around 2:12 this afternoon for assistance in securing a perimeter around the base.
With the Wichita County Sheriff's Office and DPS Troopers also involved, there were more than 30- law enforcement units there.
It happened after a 9-1-1 call was placed during the exercise, from people inside a locked down building, saying they'd heard what they thought were simulated gunshots.
Problem was, that building was not in the area where that kind of simulation was supposed to be made.
So, the drill was terminated and Sheppard went into a "real world" situation.
Sheppard Elementary and the entire base was locked down, and investigators worked quickly to determine where those shots could have come from, which they did.
George Woodward/Director of Public Affairs" "We had a contractor on base who was working on some pavement outside one of our buildings using a jackhammer. You can imagine, if you're inside the building, the sound of a jackhammer outside sounds an awful lot like blank rounds."
At around 3:30 this afternoon, Sheppard was given an all- clear, and the gates were opened.
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