Sgt. Westbrook told his father Ivan Lopez came into the office to pick up a form to request time off, but was told to come back later.
Lopez returned with a gun and started firing.
"The first guy he shot right in front of my son was killed, and then he turned the gun towards Jonathan, aimed it, and fired. I don't know how many times he fired, but he hit my son four times," Westbrook says.
Lopez's family released a statement saying the deaths of his mother and grandfather as well as a base change affected his already trouble mental state and that he "must not have been in his right mind."
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