Las Vegas shooting: At least 59 dead in massacre Trump calls 'act of pure evil'

A gunman turned a Las Vegas concert into a killing field Sunday night from his perch on the 32nd floor of the Mandalay Bay Resort and Casino, using at least 10 guns to rain down a steady stream of fire, murdering at least 59 people and injuring more than 520 others in the deadliest mass shooting in modern United States history.