The mother of a man who shot four Mississippi state troopers and was killed by police says police, who spent six hours negotiating with her son, refused to let her talk to him.

Katherine Hudson of Iuka tells The Northeast Mississippi Daily Journal ( ) that she thinks family members could have convinced Charles Lee Lambert to leave without bloodshed if they'd been allowed into his house.

Department of Public Safety spokesman Warren Strain said the officers are trained, and their first goal is keeping people alive.

He did not immediately respond to emailed and phoned queries Sunday by The Associated Press.

He said Saturday that officers had exhausted negotiations when they stormed the house early Saturday near Iuka, in northern Mississippi. One officer died and three others were wounded in the shootout that followed.