CENTENNIAL, Colo. -- A deadly attack on innocent concertgoers on the Vegas strip, a so-called soft target, could happen anywhere.
"People out enjoying a night out, only to be ambushed," said Kevin Klein, the director of Colorado's Division of Homeland Security.
From Fiddler's Green to Coors Field to Red Rocks, there are dozens of similar open-air concert venues in Colorado.
It's Klein's job at Homeland Security to keep them safe.
"I'm confident in the systems that we have in place. I'm confident in the venue operators that we work with. They're all really good; they're all concerned about public safety," he said.
Klein and national security leaders from across the country were briefed on the situation in Las Vegas late Monday.
"They are actively working the investigation, they're actively looking into this guy's past," he explained.
Klein also said his team immediately began looking for any Colorado connection to the shooter.
"If there's anything we have to worry about, we didn't find anything," he said.
Klein said what happened in Vegas, with the shooter firing from high above in a Mandalay Bay hotel room, will have far-reaching impacts on concert security in the future.
"Time that it takes to neutralize them, and the advantage that they have from an elevated position," said Klein. "We'll study this. We've learned from it, and we'll change how we do things."
While the details of Sunday night's shooting are still being investigated, Klein said it's likely someone saw something suspicious in the days leading up to the shooting. He encouraged people to report anything suspicious.
"I can tell you that those tips have led to the arrest or diversion from people actually committing bad acts," he explained.