It was unclear what she might discuss.
"He didn't rant about anything," said Pam Parker, an Austin attorney whose husband played in a band with Stack. "He wasn't obsessed with the government or any of that. ... Not a loner, not off in a corner. He had friends and conversation and ordinary stuff."
But in the self-described "rant" dated Thursday and signed "Joe Stack (1956-2010)," the author fumed about the IRS and wrote, "Nothing changes unless there is a body count."
"I have had all I can stand," he wrote, adding: "I choose not to keep looking over my shoulder at `big brother' while he strips my carcass."
The pilot took off in a four-seat, single engine Piper PA-28 from an airport in Georgetown, about 30 miles from Austin. He flew low over the Austin skyline before plowing into the side of the hulking black-glass building just before 10 a.m. Flames shot from the building, windows exploded and terrified workers rushed to get out.
The Pentagon scrambled two F-16 fighter jets to patrol the skies over the burning building before it became clear it was the act of a lone pilot, and President Barack Obama was briefed.
"It felt like a bomb blew off," said Peggy Walker, an IRS revenue officer who was sitting at her desk. "The ceiling caved in and windows blew in. We got up and ran."
The entire outside of the second floor was gone on the side of the building where the plane hit. Support beams were bent inward. Venetian blinds dangled from blown-out windows, and large sections of the exterior were blackened with soot. It was not immediately clear if any tax records were destroyed.
Emergency crews originally said people were missing inside the building, but later recovered two bodies. Austin Fire Department Battalion Chief Palmer Buck declined to discuss the identities of those found, but said authorities had now "accounted for everybody."
At least 13 other people were injured, with two initially reported in critical condition.
Austin Police Chief Art Acevedo said "heroic actions" by federal employees may explain why the death toll was so low.
Andrew Jacobson, an IRS revenue officer who was on the second floor when the plane hit with a "big whoomp" and then a second explosion, said about six people couldn't use the stairwell because of smoke and debris. He found a metal bar to break a window so the group could crawl out onto a concrete ledge, where they were rescued by firefighters. His bloody hands were bandaged.
The FBI launched an investigation and Rep. Michael McCaul, a Republican from Austin on the Homeland Security Committee, said the panel will take up the issue of how to better protect buildings from attacks with planes.
The tirade posted Thursday on a Web site registered in Stack's name began: "If you're reading this, you're no doubt asking yourself, `Why did this have to happen?"'
He recounted his financial reverses, his difficulty finding work in Austin, and at least two clashes with the IRS, one of them after he filed no return because, he said, he had no income, the other after he failed to report his wife Sheryl's income.
He railed against politicians, the Catholic Church, the "unthinkable atrocities" committed by big business, and the government bailouts that followed. He said he slowly came to the conclusion that "violence not only is the answer, it is the only answer."
According to California state records, Stack had a troubled business history, twice starting software companies in California that ultimately were suspended by the state's tax board, one in 2000, the other in 2004. Also, his first wife filed for bankruptcy in 1999, listing a debt to the IRS of nearly $126,000.
The blaze at Stack's home, a red-brick house on a tree-lined street in a middle-class neighborhood six miles from the crash site, caved in the roof and blew out the windows.
Elbert Hutchins, who lives one house away, said the house caught fire about 9:15 a.m. He said a woman and her daughter drove up to the house before firefighters arrived.
"They both were very, very distraught," said Hutchins, a retiree who said he didn't know the family well. "'That's our house!' they cried. `That's our house!"'
Thursday was not the first time a tax protester went after an Austin IRS building. In 1995, Charles Ray Polk plotted to bomb the IRS Austin Service Center. He was released from prison in October of last year.
The tax protest movement has a long history in the U.S. and was a strong component of anti-government sentiments that surged during the 1990s. That wave culminated in the 1995 bombing of a federal building in Oklahoma City that killed 168 people. Several domestic extremists were later convicted in the plot.
PRESIDENT OBAMA BRIEFED
The White House says President Barack Obama has been briefed about Thursday's plane crash in Texas.
Spokesman Robert Gibbs says the president was briefed by counterterrorim adviser John Brennan shortly before leaving the White House for a trip to Colorado and Nevada. Gibbs says the Department of Homeland Security is investigating all angles of the crash and its cause.
A low-flying small plane crashed into an office building in Austin that houses the Internal Revenue Service in Texas. Officials there say it was an intentional act by the pilot. Gibbs said it "does not appear" to be terrorism.
Due to continuing breaking news today, we have rescheduled All My Children to air tonight at 1:05 am.
