Las Vegas inventor develops drone counter-attack to stop active shooter.

In the wake of the tragedy at the Route 91 Harvest Festival, there has been a lot of talk about coming up with better ways to stop an active shooter.

A Las Vegas inventor and drone enthusiast says he has the answer.   When 8 News NOW was first introduced to John Mendonca two years ago, his drone golf game was beginning to take off.

Mendonca continued to tinker and create other ways to hone in his drone flying skills.

“So the first thing I made was a laser to burst the balloon, and then the other thing, I was making a squirt system, also to squirt a balloon,” Mendonca said.

But as Mendonca worked on his drone attachments, tragedy struck at the Route 91 Harvest Festival.  Out of the horrific shooting that killed 58 people and injured more than 500 others, came a realization, along with some inspiration.

Read the full story here.