WASHINGTON – Law enforcement agents have broken up a plot by two neo-Nazi skinheads to assassinate Democratic presidential candidate Barack Obama and shoot or decapitate 88 black people, the Bureau of Alcohol, Tobacco Firearms and Explosives said Monday.

In court records unsealed Monday in U.S. District Court in Jackson, Tenn., federal agents said they disrupted plans to rob a gun store and target a predominantly African-American high school in a murder spree that was to begin in Tennessee. Agents said the skinheads did not identify the school by name.

Jim Cavanaugh, special agent in charge of ATF’s Nashville field office, said the two men planned to kill 88 people, including 14 African-Americans by beheading. The numbers 88 and 14 are symbolic in the white supremacist community.

The men also sought to go on a national killing spree after the Tennessee murders, with Obama as its final target, Cavanaugh told The Associated Press.

“They said that would be their last, final act – that they would attempt to kill Sen. Obama,” Cavanaugh said. “They didn’t believe they would be able to do it, but that they would get killed trying.”

An Obama spokeswoman traveling with the senator in Pennsylvania had no immediate comment.

The men, Daniel Cowart, 20, of Bells, Tenn., and Paul Schlesselman, 18, of Helena-West Helena, Ark., are being held without bond. Agents seized a rifle, a sawed-off shotgun and three pistols from the men when they were arrested. Authorities alleged the two men were preparing to break into a gun shop to steal more.

The two men were arrested Oct. 22 by the Crockett County, Tenn., Sheriff’s Office. “Once we arrested the defendants and suspected they had violated federal law, we immediately contacted federal authorities,” said Crockett County Sheriff Troy Klyce.

Attorney Joe Byrd, who has been hired to represent Cowart, did not immediately return a call seeking comment Monday. Messages left on two phone numbers listed under Cowart’s name were not immediately returned.

No telephone number for Schlesselman in Helena-West Helena could be found immediately.

Cowart and Schlesselman are charged with possessing an unregistered firearm, conspiring to steal firearms from a federally licensed gun dealer, and threatening a candidate for president.

The investigation is continuing, and more charges are possible, Cavanaugh said.

Asociated Press writers Erik Schelzig in Nashville, Tenn., and Jon Gambrell in Little Rock, Ark., contributed to this report.