Echelon crash: One year later

AUSTIN (KXAN) - Friday marked one year since the violent plane crash at the Echelon One Building in North Austin.

Joe Stack, angry at the Internal Revenue Sservice, flew his small plane into the building, killing Vernon Hunter and hurting several others.

The crash tested Austin's emergency response and had some people calling it an act of  domestic terrorism .

Stack had set his own home on fire early in the morning before the crash, and left behind a confused wife, and a confusing online manifesto raging against the government and taxation.

In January, Vernon Hunter's widow, Valerie, settled a lawsuit she filed over her husband's death. The amount she received in the settlement was not released. She was paid from insurance money, not from Stack's estate.

As for the building itself, offices are under construction after the building was gutted in October . It could re-open later this year.

Central Texas leaders are still studying the incident as they look for the best ways to respond to major emergencies. Austin hosted a Homeland Security symposium on Feb. 16 where officials from all across Central Texas talked about what they've learned from the Echelon plane crash as well as other big incidents during the past year.

Click here to see a photo timeline of the crash and aftermath.