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A rash of false fatality fears occurred in 1945, according to the New York Times, following the April 12 death of President Franklin Delano Roosevelt
New York Times, April 14, 1945
“Widespread jitters bordering on mass hysteria seemed to sweep New York yesterday in the wake of Franklin D. Roosevelt’s death, as rumors of killings, accidents and deaths involving prominent persons flooded the city,”
Among the rumored victims mentioned in the story were Van Johnson, Charlie Chaplin, Frank Sinatra, Al Jolson, Errol Flynn, Babe Ruth and Jack Benny. There were so many panicked phone calls to newspapers, radio stations, government offices and private businesses, the Times reported, that harried switchboard operators believed it was part of a conspiracy to hinder communications.
— Tim