A 22-year-old black man is being charged in the savage killing of a mom and daughter in Las Vegas

African-American Bryan Clay bludgeoned to death 10-year-old Karla Martinez and her mother, Ignacia Martinez at their Robin Street home in an apparent random crime. Karla’s father, Arturo Martinez, 39, was critically injured in the bludgeoning attack and remains in hospital with head injuries. Ignacia and Arturo’s 9-year-old son tragically discovered the slain bodies of his mother and sister, going into school and telling teachers at his Mabel Hoggard Elementary School that they had been killed by his dad. Police later rejected the allegation. Karla had been raped prior to her death, Las Vegas Metro police said in a press conference. Clay carried out a separate sexual assault, against a 50-year-old woman the day before the bloody murders. Metro Lt. Rob Lundquist said that Clay began chasing the woman at around 2am on April 15, 2012 grabbing her and dragging her into a desert area and violently attacking her in what became a sexual assault. Police said that they are treating the crimes as unrelated and do not believe Clay had any relationship with his victims prior to the attacks. Clay was arrested on a child abuse charge and is to be re-booked as soon as possible on charges of sexual assault and murder.