11:00am UPDATE: Miami attorney Jack Thompson today was expected to file a wrongful death lawsuit against Cody Posey and the makers of "Grand Theft Auto: Vice City" saying the video game taught Posey how to fire a weapon and turned him into an "extraordinarily effective" killer, according to a story in the early edition of today's Albuquerque Tribune.

The 68-page lawsuit names as Posey -- who is serving a juvenile sentence for the killing of his father, stepmother and 13-year-old stepsister in July 2004 -- as a defendant, along with "Take-Two Interactive Software," producer of the "Grand Theft Auto" series, and Sony Corp., make of Playstation 2, the Tribune reported.

"If it wasn't for `Grand Theft Auto,' three people might not now be dead," the Tribune quoted Thompson.

Thompson, a controversial crusader against violence in rap music as well as violent video games, has filed a similar lawsuit in Alabama on behalf of the families of two police officers and a dispatcher who were killed in 2003 by a 16-year-old who was allegedly obsessed with "Grand Theft Auto" before the killings, according to the Tribune.

The lawsuit is being filed on behalf of surviving relatives of Posey's father, Paul Posey; stepmother Tryone Posey; and stepsister Marilea Schmid, the Tribune reported.

In less than half an hour from now, Florida attorney Jack Thompson will appear with Albuquerque trial lawyer Steven Sanders to announce a wrongful death lawsuit stemming from teen-ager Cody Posey's killings of three family members on July 2004 on newsman Sam Donaldson's Lincoln County ranch.

Details of the lawsuit won't be known until after this morning's news conference at 10 a.m. in front of the Bernalillo County Courthouse in Albuquerque.

But Thompson is well-known for his crusades against violence in computer and video games.

According to a video-game blog posted over the weekend, Thompson wrote that he would be filing "what will likely prove to be (a) hugely significant wrongful death action against Sony and Take-Two..."

That would seem to indicate that the action will be taken in connection with the popular and controversial "Grand Theft Auto" series.

Posey was found guilty in February of killing his father, stepmother and 13-year-old stepsister, and was sentenced later that month as a juvenile -- to be held in custody by the state Children, Youth and Families Department until he turns 21, the Albuquerque Journal reported at the time.

In an emotional trial that was broadcast live on Court TV, prosecutors called Posey, who was 15 at the time of the killings, a "mass murderer," a "cold-blooded killer" and a psychopath, while his defense argued that he had been severely abused by his father for years.