Rick Smith, founder and CEO of Axon Enterprises, shoots a target with a TASER 7 during a program on the future of technology in law enforcement at the Mob Museum in downtown Las Vegas Saturday June 1, 2019. Smith also signed copies of his new book, "The End of Killing: Using Technology to End Violence."

Steve Marcus

Rick Smith, founder and CEO of Axon Enterprises, shoots a target with a TASER 7 during a program on the future of technology in law enforcement at the Mob Museum in downtown Las Vegas Saturday June 1, 2019. Smith also signed copies of his new book, "The End of Killing: Using Technology to End Violence."