CRIME
07/21/2011 11:22 am ET Updated Sep 20, 2011

Brian Williams Pleads Not Guilty In Killing Of Mom, San Diego Police Detective Donna Williams

A 24-year-old Rancho Peñasquitos man with a history of mental illness accused of violently killing his mother and sister at their home earlier this week pleaded not guilty to murder charges on Wednesday.

Brian Rockwell Williams, who was ordered held without bail, could face 52 years to life in prison if convicted of the alleged murders, Deputy District Attorney Kristen Spieler said.

Williams is accused of stabbing his mother, 52-year-old veteran San Diego police detective Donna Williams, and 18-year-old sister Briana Williams, who graduated from Mount Carmel High School in June.

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