John Flammang Schrank (March 5, 1876 – September 15, 1943) was a Bavarian-born saloonkeeper of New York who attempted to assassinate former U.S.
President Theodore Roosevelt on October 14, 1912, in Milwaukee, Wisconsin.
Roosevelt, who had left office three and a half years earlier, was running for President as a member of the Progressive Party.
While campaigning in Milwaukee, Wisconsin, Schrank, who had been stalking him for weeks, shot Roosevelt once in the chest with a .38-caliber Colt Police Positive Special revolver.
The 50-page text of his campaign speech folded over twice in Roosevelt's breast pocket and a metal glasses case slowed the bullet, saving his life.
Schrank was immediately disarmed, captured and might have been lynched had Roosevelt not shouted for Schrank to remain unharmed.At Schrank's trial, the would-be assassin claimed that William McKinley had visited him in a dream and told him to avenge his assassination by killing Roosevelt.
He was found legally insane and was institutionalized until his death in 1943.