Helicopter crashes into Hilton hotel, kills pilot in ‘unauthorized’ flight The Washington PostHelicopter crashes into roof of Cairns Hilton DoubleTree hotel, killing pilot ReutersPilot killed after ‘unauthorized’ helicopter crashes into hotel’s roof in Australia NBC NewsPilot dies after helicopter crashes into Australian hotel CBS NewsHotel evacuates 400 people after helicopter crashes into roof and sparks massive fireball: ‘Sounded like a bomb’ New York Post