'Dancing with the Stars' to Hold Moment of Silence For Las Vegas Victims

Dancing with the Stars will honor the victims of Sunday night's Las Vegas shooting with a moment of silence at the start of their show Monday, which is being delayed five minutes to 8:05 p.m. ET.

The episode will follow a special five-minute update from World News Tonight's anchor David Muir (from 8 p.m. to 8:05 p.m. ET) on details surrounding the tragic event in Las Vegas. The update is in addition to a special one-hour special Monday edition of World News Tonight.

Nightline will also air a special broadcast at 12:35 a.m. The Good Doctor will still air at it's original time at 10 p.m. EDT.

The deadliest mass shooting in modern U.S. history on Sunday night left at least 59 dead and 527 injured after 64-year-old Stephen Paddock opened fire from the 32nd floor of the Mandalay Bay Hotel during country star Jason Aldean's set at the Route 91 Harvest Music Festival on the Las Vegas strip. Authorities said SWAT teams used explosives to enter the gunman's hotel room where they found he had killed himself.

According to Sheriff Joseph Lombardo, the suspect had 16 guns in his hotel rooms including rifles that were modified to become fully automatic. Several pounds of ammonium nitrate were also found in Paddock's car. 

Despite a claim from the Islamic State terror group that they were responsible for the attack, Nevada authorities say Paddock acted alone.