Austin, Texas (CNN) — Friends say they had no inkling of the rage tormenting a man believed to have deliberately crashed a small plane Thursday into an Internal Revenue Service building.
Joe Stack, who federal officials say flew his Piper Cherokee PA-28 into an IRS office, was carefree, friendly and professional, the former friends said.
“He was a regular, easygoing Joe,” said Billy Eli, in whose band Stack played bass until a few years ago.
But an apparent suicide message left on a Web site registered to Stack shows a different side: a man extremely angry at the IRS and more than 20 other entities he believed had been hurting him for a long time.
“He hid that very well,” Eli said. “Obviously he was in some serious distress and had some real despair. I never saw that.”
Another former band mate, Ric Furley, expressed a similar sentiment.
“I never saw him in a bad mood or speaking negatively about anything or anyone,” Furley told CNN’s “American Morning.
A former FBI profiler said Stack, 53, apparently had been nursing pain for quite a while.
“He was a wound collector,” said Joe Navarro, a 25-year FBI veteran. But those wounds, Navarro said, may not have been evident.
“Unfortunately, what goes on in the mind often remains there,” Navarro said, also on “American Morning.”
The observations into Stack’s psyche came as investigators continued to try to piece together what happened Thursday.