Tha man said to be behind the Holocaust Museum shootings left a note was in his car claiming that US President Barack Obama does what his "Jew owners tell him to do."

A notebook was found in the car of James von Brunn, the 88-year-old white supremacist who has been charged with murdering security guard Stephen Johns Wednesday at the Washington museum, according to court papers.

Inside, a handwritten note said: "You want my weapons. This is how you'll get them. The Holocaust is a lie. Obama was created by Jews. Obama does what Jew owners tell him to do. Jews captured America's money. Jews control the mass media. The First Amendment is abrogated -- henceforth ..."

Von Brunn could face the death penalty if convicted in the murder of 39-year-old Johns. He also faces a charge of killing while in possession of a firearm in a federal facility. He remains in hospital after being shot several times by other guards.