The rangerette told me that they get all kinds of FDR fanatics visiting the Little White House: A few years ago a visitor showed up and went straight into the president's bathroom, coming out exclaiming loudly that the evidence had all been covered up. The rangers asked him what he meant. He said that the bullet holes had all been repaired or plastered over. He said during the War there had been another assasination attempt when a Japanese spy had slipped past all the guard posts and snuck into the president's bathroom, shooting the president while he was sitting on the toilet, before being wrestled to the floor and arrested. The ranger staff don't know where the guy got this story.