"Jeopardy!" host Alex Trebek speaks as he is inducted into the National Association of Broadcasters Broadcasting Hall of Fame during the NAB Achievement in Broadcasting Dinner at Encore Las Vegas on April 9, 2018 in Las Vegas, Nevada. (Photo by Ethan Iconic “Jeopardy!” host Alex Trebek has died at the age of 80.The longtime game show confirmed the news of his passing on Twitter Sunday morning.In March 2019, Trebek announced that he had been diagnosed with stage 4 pancreatic cancer.