It took a civilian police officer roughly four minutes to respond to calls from Fort Hood last Thursday. There may be a way to get police on the scene even faster.
A new software can detect the sound of a gun shot within one second of a trigger being pulled. And that's not all it does. Tech expert Mario Armstrong drops in on the CNN Newsroom with a little show and tell.
Join TJ Holmes and Betty Nguyen weekend mornings in the CNN Newsroom, 6am ET/ 3am PT.