Here's the latest on the deadly shooting in Las Vegas.

Entertainment Industry Speaks Out

After a gunman killed 58 people and injured more than 500 at a Las Vegas music festival late Sunday, Oct. 1, entertainment executives issued words of support and sympathy on Twitter (TWTR) - Get Report Monday.

Shares of Live Nation Entertainment Inc. (LYV) - Get Report , which put on the sold-out Route 91 Harvest musical festival where the massacre took place, declined nearly 2% by early afternoon trading Monday. Live Nation President and CEO Michael Rapino reached out via Twitter.

Live Nation issued a statement Monday: "Live Nation will do everything in our power to support the victims and their families through the aftermath of this horrendous event and extends our deepest gratitude to the heroic first responders who helped save as many lives as possible."

Country music singer Jason Aldean was on stage performing when the shooter, later identified as 64-year-old Stephen Paddock of Mesquite, Nevada, starting shooting into the 22,000-person crowd with an automatic weapon. Aldean took to Facebook-owned (FB) - Get Report Instagram late Sunday. 

Broken Bow Records, which represents Aldean, issued a statement as well.

Big Machine Label Group President and CEO Scott Borchetta offered an emotional message.

Popular radio show host Bobby Bones explained what friends told him of the scene.

There had been no tweets sent from the Route 91 Harvest page by early afternoon Monday.

A Look Back

This mass shooting comes on the heels of other acts of violence at entertainment events in recent years. Over 20 people were killed in a shooting in Manchester, England, at an Ariana Grande concert earlier this summer. In November of 2015, 130 people were killed and many were held hostage at a concert at Le Bataclan in Paris.

Route 91 Harvest became the deadliest shooting in U.S. history Monday. The previous deadliest shooting was at Pulse Nightclub in Orlando, where 49 people were killed by a shooter in June 2016.