Click the play button on the video window to the right to see the storyPHOENIX -- Twin brothers from Illinois have been indicted in a 2004 mail bombing that injured the diversity director in the Phoenix suburb of Scottsdale.
Dennis and Daniel Mahon are charged with conspiracy to damage buildings and property by means of explosive, according to an indictment unsealed Thursday and filed June 16 in federal court.
The indictment says the brothers intended to "promote racial discord" on behalf of the White Aryan Resistance.
The package detonated in the hands of Don Logan, who is black, on Feb. 26, 2004, in the city's Human Resources Complex.
The blast injured Logan's hand and arm, and a secretary also was injured; both required surgery and spent about a week in the hospital.
Authorities arrested the brothers Thursday in their Davis Junction, Ill., home and say they had assault weapons, hundreds of rounds of ammunition and white supremacist material.
Authorities didn't know if the brothers had attorneys. There are no telephone numbers listed for Mahon in Davis Junction.
Dennis Mahon also is charged with malicious damage of a building by means of explosive and distribution of information related to explosives, according to the indictment.
"We've waited five years to hear the news announced today," Logan said in a statement released Thursday. "Today's announcement was met with much enthusiasm and appreciation ... I remain convinced the judicial process will result in justice to me and my colleagues impacted by the blast."
Authorities at the U.S. Postal Inspection Service and the U.S. Attorney's Office declined to comment until a news conference scheduled for Friday morning.
The indictment says the brothers conspired to build and deliver the bomb to the diversity office, taught others how to build a package containing a pipe bomb, and sent training materials on the production and use of explosives, techniques to avoid detection by law enforcement, and methods to commit domestic terrorism.
The indictment says Dennis Mahon participated in the construction of the bomb, disguising it in a cardboard box that was delivered to the Scottsdale diversity office.
One month before the bombing, the indictment says, Dennis Mahon called the diversity office and left a message saying, "the White Aryan Resistance is growing in Scottsdale. There's a few white people who are standing up."
The package was addressed to Logan, who served as an ombudsman for city employees and citizens on diversity issues, including racial and sex discrimination. The bomb was sent through the post office to the city building, which is about a block from City Hall. The explosion forced the evacuation of 25 people in the building.
"This event really struck home," Scottsdale police Sgt. Mark Clark said Thursday. "It caused a lot of fear and grief, and it's been a long road in the investigation, and we're certainly glad it's moving forward."