Has America Faced another 9/11 ??!!!

Joseph Andrew Stack, is the man who set his house on fire and dilberately crashed his aircraft into an office building in Austin, Texas. After the authorities investigated they found the remains of two bodies that were not identified immediately. A letter was posted by him on a specific site and then through the request of the FBI was removed later from that site. The building in which the aircraft crashed into was believed to be an IRS building with 199 employees. people do not know what was the real purpose was that made him commit sucide and crash into the IRS building and kill 2 innocent peoeple.