LAS VEGAS, NV - OCTOBER 02: Clark County Commission Chair Steve Sisolak embraces a member of the clergy as he attends a vigil at Guardian Angel Cathedral for the victims of the Route 91 Harvest country music festival shootings on October 2, 2017 in Las Vegas, Nevada. Lone gunman Stephan Paddock, 64, of Mesquite, Nevada opened fire on festival attendees leaving at least 59 dead and over 500 injured before killing himself. The investigation is ongoing. (Photo by Denise Truscello/Getty Images)

He had never seen anything like it.
Early Monday morning as millions of Americans woke up to devastating news of what turned out to be the deadliest mass shooting in modern U.S. history , Steve Sisolak joined his fellow Las Vegas officials to take a first look at the scene of the carnage, wading through the pools of blood and broken bottles left behind in the chaos.
That was before the lifeless bodies strewn on the ground were identified, before bloodied shoes, purses, wallets and baby strollers were removed, before the endless ringing of abandoned cell phones came to an end. And that was before officials knew the full extent of the massacre executed by a gunman that they would later announce took the lives of at least 59 people and injured 527 others during the Route 91 Harvest country music festival in Las Vegas Sunday night.
For Sisolak, the chairman …