An Austin, Texas, resident with an apparent grudge against the Internal Revenue Service set his house on fire Thursday and then crashed a small plane into a building housing an IRS office with nearly 200 employees, officials said.
Federal authorities identified the pilot of the Piper Cherokee PA-28 as Joseph Andrew Stack, 53.
Two people were injured and one person was missing, local officials said. There were no reported deaths.
A message on a Web site registered to Stack appears to be a suicide note.
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