October 4, 2017 4:16 pm President Trump: ‘America Is Truly a Nation in Mourning' President Donald Trump, surrounded by police officers and lawmakers from Nevada, delivered remarks after meeting with survivors of the Las Vegas shooting at a hospital in Las Vegas on Oct. 4. US & World Videos 1:45 NYPD enters Columbia University in riot gear to clear protest 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 2:04 Arrests made, camps removed during pro-Palestinian protest at UConn 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug