Mandalay Bay shooting: a memorial to the victims at the Route 91 Harvest festival in Las Vegas on Tuesday. Photograph: Hilary Swift/New York Times

At least one of the rifles the gunman in the Las Vegas mass shooting had in his hotel suite was outfitted with a “bump stock”, a device that would ena(...)

Las Vegas police stand guard along the streets outside the festival grounds of the Route 91 Harvest in Las Vegas, Nevada amids reports of an active shooter around the Mandalay Bay Resort and Casino. Photograph: David Becker/Getty Images

At least 59 people were killed and more than 520 injured when a 64-year-old gunman with an arsenal of at least 10 rifles fired upon a Las Vegas countr(...)