" A pilot furious with the Internal Revenue Service crashed his small plane into an office building in Austin, Texas, that houses federal tax employees, setting off a raging fire.
Officials are investigating whether the pilot, identified by authorities as Joseph Andrew Stack, a 53-year-old software engineer who lived in Texas, crashed the plane intentionally. Stack was confirmed dead.
An Internal Revenue Service office is located inside the building.
IRS Agent William Winnie said he was on the third floor of the building when he saw a light-colored, single engine plane coming towards the building, TheStatesman.com reported.
“It looked like it was coming right in my window,” Winnie said, according to the Web site.
Winnie said the plane veered down and smashed into the lower floors. “I didn’t lose my footing, but it was enough to knock people who were sitting to the floor.”
Stack posted a suicide note to a social media Web site, ranting against the IRS, officials confirmed.
"If you’re reading this, you’re no doubt asking yourself, “Why did this have to happen?'" the note read. "The simple truth is that it is complicated and has been coming for a long time."