Edited sentence: Although alleged by Thompson to be a cause of Kazmierczak's killing spree, the game was played by others in the same dormitory hall and not considered an unusual pastime.Controversial Miami-based attorney Jack Thompson claimed February 15 that Kazmierczak was driven to commit the shootings by video games.If I am not provided with this information, I shall bring a civil action to secure these documents.Not limited to the use of his computer to play Counter-Strike, which he apparently, according to the New York Post, used to rehearse for his Valentine’s Day Massacre at NIU,” Thompson wrote in a letter obtained by popular gaming rights site GamePolitics.Thompson wrote a letter to Northern Illinois shooting demanding that he be given any records dealing with the shooter in a deadly Valentine's Day massacre playing violent video games –- and that he would sue NIU to get them.“Pursuant to the Illinois Freedom of Information Act, I hereby request production of copies of all documents that reveal Steven Kazmierczak’s play of violent video games.“The killers in the two worst school massacres in history—in Erfurt, Germany, and at Virginia Tech University—similarly trained on Counter-Strike to rehearse for their killing sprees