WATERLOO, Ill. (AP) -- Lawyers for a southwestern Illinois man charged with killing his wife and two sons are trying to keep jurors from seeing sexually explicit material he made and traded with his mistress.
William Margulis, an attorney for Christopher Coleman, says the videos and messages would be "highly prejudicial" to Coleman.
Monroe County State's Attorney Kris Reitz says the material shows the affair was a motive for the killings.
A judge will make a decision soon on whether the jury will see the material. Coleman's trial is set to begin Feb. 15.
One explicit message was sent four days before Coleman's wife and sons were found strangled in their Columbia home in May 2009.
Coleman has pleaded not guilty to first-degree murder. He's being held without bond.
(Copyright 2011 by The Associated Press. All Rights Reserved.)