"Back in the day, it's like, if I took this ground from you, I didn't give it back to you," said Las Vegas Sgt. Brian Briggs, who oversees officer training and was himself shot in the line of duty. " … We are trying to tell people it's OK, we have more time. We can set up, let's get more people. ... There were too many incidents, too many shootings, too many even uses of force. People were saying we need to come up with a new way of thinking about it."