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But Aitcheson volunteered to step away temporarily from the public ministry, "for the well-being of the church and parish community,” the diocese said. He had been serving as a parochial vicar at a church in Fairfax City.
"While Fr. Aitcheson’s past with the Ku Klux Klan is sad and deeply troubling, I pray that in our current political and social climate his message will reach those who support hate and division, and inspire them to a conversion of heart,” Bishop Michael F. Burbidge said in the diocese's statement.
There have been no accusations of “racism or bigotry” during Aitcheson’s service in Arlington, the diocese added.
The statement did not indicate how long Aitcheson would be stepping away and said he would not be available for interviews. Attempts to reach him by phone were not successful as of Tuesday afternoon.
According to a March 2, 1977 article in the Associated Press, a then 23-year-old Aitcheson was charged with cross burnings, manufacturing pipe bombs and making bomb threats as part of a Maryland KKK plot to damage private, government and military facilities.
The Maryland State Police spokesman at the time told the AP Aitcheson was a leader in the Robert E. Lee Lodge of the Maryland Knights of the KKK.
And according to an archive 1977 article in the Washington Post, Aitcheson pleaded guilty in May of that year to charges that he threatened to kill Coretta Scott King, widow of civil rights icon Martin Luther King Jr., in a letter in 1976.
Aitcheson mentions both cross burning and a threatening letter in his editorial.
The priest apologized for his behavior, writing, “I have no excuse, but I hope you will forgive me.”
He said the images coming out of the Charlottesville rallies were “embarrassing.”
“They embarrass us as a country, but for those who have repented from a damaging and destructive past, the images should bring us to our knees in prayer,” he wrote.
The diocese added that Aitcheson’s editorial was written with the intent of spreading his story of transformation.
"The irony that I left an anti-Catholic hate group to rejoin the Catholic Church is not lost on me," Aithcheson wrote in his editorial. "It is a reminder of the radical transformation possible through Jesus Christ in his mercy."
“If there are any white supremacists reading this, I have a message for you: you will find no fulfillment in this ideology,” he added.
Daniella Silva is a reporter for NBC News, specializing in immigration and inclusion issues, as well as coverage of Latin America.