By KEN RITTER
Associated Press

LAS VEGAS (AP) - A flock of doves fluttered skyward at sunrise in Las Vegas on Monday, each bird bearing a leg band with the name of one of the 58 people slain in the deadliest mass shooting in the nation's modern history one year ago.

Marking the anniversary of the night that a gunman opened fire from a high-rise casino suite on a crowd of 22,000 country music fans, Nevada Gov. Brian Sandoval gathered with several hundred people at an outdoor amphitheater remembrance ceremony.

"Today we remember the unforgettable. Today, we comfort the inconsolable," Sandoval told survivors , families of victims, first-responders and elected officials who gathered at dawn.

He added: "Today, we are reminded of the pain that never really goes away."

The sunrise ceremony kicked off a day of memorials, prayer services, blood drives and dedications to commemorate the lives lost in the Oct. 1, 2017, shooting. The giant casino marquees were set to go dark in unison Monday night with the names of the victims to be read shortly after.

At a midday evangelical prayer vigil at city hall, a trio of California friends who are survivors of the shooting - Jann Blake of Menifee, Linda Hazelwood of Anaheim and Michelle Hamel of Yorba Linda - held hands and bowed heads. Blake recalled strangers helping the three escape the Route 91 Harvest Festival concert venue without physical injuries.

"We need to have this. It's not a closure ceremony, it's more a remembrance," Blake said. "There was a lot of good. There were people in there that helped us get out."

The festival venue that became a killing ground has not been used in the year since the shooting. MGM Resorts International, the owner of the property and Mandalay Bay hotel, has not said if or when it will reopen.

Company officials redirected curious people on Monday to a nearby Catholic church that offered a spot for "quiet reflection." They also reminded people about an evening dedication scheduled at the downtown Las Vegas Healing Garden, which became a memorial for victims of the shooting.

Clark County Sheriff Joe Lombardo recalled the chaos and confusion of the shooting, and the prayers to "heal broken hearts," blood banks filled with donors and "acts of kindness that comforted the suffering" that followed.

"When the sun rose the next morning, grief turned to anger, anger turned to resolve and resolve turned to action," Lombardo said.

Many who were cheering Jason Aldean's headline set on at the Route 91 Harvest Festival late Oct. 1, 2017 , said later they thought the rapid crack-crack-crack they heard was fireworks - until people fell dead, wounded, bleeding.

From across neon-lit Las Vegas Boulevard, a gambler-turned-gunman with what police later called a meticulous plan but an unknown reason fired assault-style rifles for 11 minutes from 32nd-floor windows of the Mandalay Bay hotel into the concert crowd below. Police said he then killed himself.

Medical examiners later determined that all 58 deaths were from gunshots. Another 413 people were wounded, and police said at least 456 were injured fleeing the carnage.

Lombardo declared the police investigation finished in August, issuing a report that said hundreds of interviews and thousands of hours of investigative work could not provide answers to what made Stephen Craig Paddock unleash his hail of gunfire.

That has left unanswered the question of why a 64-year-old former accountant, real estate investor, small plane pilot and high-limit video poker player assembled his arsenal and attacked the concert crowd.

Paddock was characterized by police as a loner with no religious or political affiliations who became obsessed with guns, spent more than $1.5 million in the two years before the shooting and distanced himself from his girlfriend and family.

Paddock's gambling habits made him a sought-after casino patron. Over several days, Mandalay Bay employees readily let him use a service elevator to take suitcases to the $590-per-night suite he had been provided for free. The room had a commanding view of the Strip and the Route 91 Harvest Festival concert grounds across the street.

After breaking out windows, Paddock fired 1,057 shots in 11 minutes, police have said.

Jim Murren, the chief executive and CEO of MGM Resorts International, issued a statement calling the shooting "an unforgettable act of terror."

"Oct. 1 will forever be a day of remembrance, reflection and mourning as we struggle to comprehend the incomprehensible - the senseless act of evil that caused such a tragic loss of life, along with the suffering that we know continues," Murren said.

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