"We want to send a message with a huge verdict to Sony and TAKE2interactive and the entire video game industry that if they're going to continue to market adult-rated games to children with these horrific consequence, then we're going to take their blood money from them and send a message to their boards that they have to stop this practice or there will be other suits on behalf of other people, killed by these games," Thompson said.
TAKE2interactive declined to comment to Good Morning America about the incident.
Are Parents the Gatekeepers?
It's not the first time the game Grand Theft Auto has been linked to bouts of real-life violence.
A gang of teenagers in California, charged with plotting carjackings and murder, say their actions were inspired by playing Grand Theft Auto, morning, noon, and night.
In Oakland, Calif., a group of young people who called themselves the "Nut Cases" told police they played violent video games before going out and robbing and killing random victims on the street. They said their favorite was Grand Theft Auto. The five men and one woman are facing charges in dozens of robberies and five killings that took place in 2002 and early 2003.
The Entertainment Software Association, which represents the video game industry, pointed to research showing that youth crime has gone down even as video games have proliferated. The games are rated for violence, and ultimately, parents make the decisions about what games they bring into their homes, the association said in a statement.
"Parents are present at and involved in the purchase or rental of games 83 percent of the time, according to a September 2000 Federal Trade Commission report," the association said.
Family members of those killed in video game-related shooting sprees say it is time to take Grand Theft Auto off the market, before more lives are lost.
Bede, who says she will never fully recover from the incident that left bullet fragments in her body, isn't satisfied with the sentence the Buckner boys received.
"I really don't think they got what they deserve," she said.