>> her husband of four years, navy captain mark kelly, is an astronaut who is scheduled to command the shuttle endeavor when it launches in april. his twin brother, scott, is currently in command of the international space station, where he has been informed of the shooting. >> the family connections fueled her interest in space, and in congress, she sits on the science and technology committee as well as armed services and foreign affairs. her fellow arizonan, senator john mccain, said whoever did this, whatever their reason, they are a disgrace to arizona, this country and the human race. >> i am just heartbroken. gabby is more than just a colleague, she is actually a friend. >> giffords was one of 20 democrats whose districts were lit up in crosshairs on a sarah palin campaign website last spring. giffords and many others complained that someone unstable might act on that imagery.