Itzcoatl Ocampo will be arraigned Monday on the new charges , the district attorney says . The case against him was first reported by CNN affiliate KCAL9 in San Diego. Authorities say Ocampo and Estrada 's son , Eder Herrera , are friends .
Itzcoatl Ocampo will be arraigned Monday on the new charges , the district attorney says . Ocampo , 23 , is accused of the brutal stabbing death of Racquel Estrada and her son . Authorities say Ocampo and Estrada 's son , Eder Herrera , are friends .