alone. just as prosecutors now believed he wasn t alone the night he stabbed cathy to death. sam s cousin xavier was also arrested and charged with murder. police also arrested sam s older brother, armando, who was once married to cathy s sister tina and had helped search for cathy. it s just a tragic loss. it hurts. everybody loved cathy. reporter: armando was charged with being an accessory after the fact for allegedly helping cover up the murder. we believe that he was telling people who had information that could help convict sam not to cooperate with the police. reporter: cathy s sister had to ponder what that might mean about her former husband. betrayal of the worst kind. betrayal of her, betrayal of you. exactly, everything. your family. my family. trust, betrayal, everything s broken beyond belief. reporter: sam and his wife had also separated by this