Rep. Gabrielle Giffords was only a few minutes into her “Congress on your Corner” meeting with constituents when the gunman struck. Now, one of her last acts in Congress will be to finish that meeting.

The Arizona Democrat announced Sunday that she will resign from her congressional seat this week, about one year after sustaining massive injuries in the massacre in Tucson that killed six, wounded 13 and sparked a nationwide conversation about the tenor of the country’s political debate.

She nearly died from the gunshot wound to her head, and the severity of the damage to her brain left the extent of her recovery in question. But it was in a clear and strong voice that betrayed only a hint of her ordeal that Giffords announced her decision, in a video posted on her campaign Web site.