SAN FERNANDO - A 21-year-old man was charged today with capital murder in the fatal stabbings of his parents and his 16-year-old sister at the family's Northridge home on Friday.

Brandon Christoph Menard, who called 911 to report that he found the bodies early Friday, is scheduled to be arraigned some time today in San Fernando Superior Court.

Menard, arrested late Friday after questioning by detectives, is charged with three counts of murder for the slayings of his parents - David, a 56- year-old real estate agent, and Toni, a 55-year-old evening nursing supervisor at UCLA's Resnick Neuropsychiatric Hospital - and his sister, Ashley, a Granada Hills High School student and dance team member.

The murder charges include the special circumstance allegation of multiple murders, which could make him eligible for the death penalty. Prosecutors will not make a determination on whether to seek capital punishment until the case gets closer to trial, according to the District Attorney's Office.

The criminal complaint, filed by Deputy District Attorney Beth Silverman, alleges that Menard used a knife to kill the victims, and that he used a handgun to shoot and wound his father during the attack.

The parents were found in the house at 17024 Stare St., and Ashley's body was found in the back yard.

Police have not disclosed a motive for the killings.