Manassas, Va. ? Sniper suspect John Allen Muhammad espoused racist and anti-American views and said “America got what it deserved” on Sept. 11, 2001, according to a court filing made public Monday.

The documents also indicate that Muhammad was an unindicted co-conspirator on a federal charge of passport fraud in December 2002, that he mugged an elderly man in Arizona in 2002, and that he was responsible for a February 2002 killing of a woman in Washington state.

The accusations against Muhammad were filed by prosecutors as part of a “notice of unadjudicated conduct,” a list of bad acts that prosecutors may use against Muhammad at sentencing if he is convicted of the Oct. 9 shooting of Dean Harold Meyers outside a Manassas-area gas station. Muhammad faces the death penalty.

At a court hearing Monday, Circuit Judge LeRoy F. Millette Jr. placed the documents under seal, but they were made public later in the day when the judge learned that the court clerk’s office had already put them on a court Web site earlier Monday.

The judge in June had instructed that the documents, when filed, would be sealed. It was not immediately clear whether prosecutors or the court clerk was responsible for making sure that the judge’s order would be adhered to.

Prosecutors have said last year’s sniper spree, which killed 10 people and wounded three in the Washington area over a three-week span in October, was part of a scheme to extort $10 million from the government. But Monday’s court filing gives one of the first glimpses of a possible non-financial motive for Muhammad.

Muhammad’s alleged partner, teenager Lee Boyd Malvo, allegedly told two prison guards that racial hatred was a partial motivation for the shootings and that the only reason he shot black people was because the police would have caught them sooner if all the victims had been white.

Muhammad, 42, and Malvo, 18, have been linked to about two dozen shootings in several states. Neither Muhammad nor Malvo has been charged with the shooting of Keenya Cook in Tacoma, Wash., but they are under investigation.