HOUSTON (AP) — Timothy McVeigh has written a letter to the Houston Chronicle stating unequivocally there was never a John Doe No. 2 who helped him blow up the Oklahoma City federal building.

McVeigh's former attorney Stephen Jones has alleged McVeigh was one of a group of conspirators in the April 19, 1995, bombing that killed 168 people.

"Jones has been thoroughly discredited, so I'm not going to break a sweat refuting his outlandish claims point-by-point," McVeigh wrote in the letter mailed from the federal prison in Terre Haute, Ind. "The truth is on my side."

McVeigh said in the book "American Terrorist: Timothy McVeigh & The Oklahoma City Bombing," that convicted co-conspirator Terry Nichols helped mix the fertilizer bomb, but claimed he alone carried out the bombing.

"Does anyone honestly believe that if there was a John Doe 2 (there is not), that Stephen Jones would still be alive? ... Think about it," McVeigh wrote.

McVeigh's single-page letter was handwritten May 2, a week before the government's decision to delay his execution so McVeigh's attorneys could examine thousands of FBI documents related to the bombing.

Defense attorney Robert Nigh of Tulsa told the newspaper that he could not comment on McVeigh's statement or on whether it would hamper any efforts to seek a new trial based on the newly revealed evidence.

"Well, I bet he wishes now he'd followed my advice and kept his mouth shut," Jones told the newspaper. "And I bet he wishes he'd followed (appellate attorney) Nathan Chambers' advice and not dismissed those appeals."

McVeigh, 33, was scheduled to die Wednesday for the bombing. The execution has been delayed until June 11.