Terrorism and the whole question what is terrorism will arise tonight in texas as two sides gear up for one of the biggest military trials in decades. Major nidal hassan charged with murder for his... See More
Terrorism and the whole question what is terrorism will arise tonight in texas as two sides gear up for one of the biggest military trials in decades. Major nidal hassan charged with murder for his rampage at fort hood back in 2009. He will be defending himself. Abc's chief investigative correspondent brian ross reports that many of those he injured will be there to con front him and also to confront the army for what happened since. Reporter: For the victims who will be called to testify, the trial means reliving the horror of what happened that day at fort hood, seen in this footage, obtained by abc news, taken moments after the shooting stopped. Everyone is scrambling. It's chaos. A few seconds after he started shooting is when I took a round to the chest. Reporter: The victims will also face cross-examination by the accused shooter himself, major nidal hassan, who has opted to serve as his own lawyer in the military trial. But even more upsetting, and what has led many of the victims to file this lawsuit, is the decision by the army to deny the injured and dead soldiers a purple heart, treating the fort hood shooting simply, "workplace violence." Recently retired staff sergeant shawn manning, who will testify and still has bullets lodged in his body, says that means lower priority veterans medical care and a loss of tens of thousands of dollars in benefits. Basically, they're treating us like I was downtown and I got hit by a car. Reporter: The accused shooter, nadal hassan, identified in this photo by three of the victims allegedly shouted a la act bar before he shot. He had 7 rounds on his person. Reporter: The secretary of the army says no victims ever received substandard care. To declare foreign terrorists would have a potentially profound effect on the ability to conduct the trial. Brian ross, abc news.
This transcript has been automatically generated and may not be 100% accurate.