Itzcoatl Ocampo will be arraigned later on the new charges , the district attorney says . Ocampo , 23 , is accused of the brutal shooting death of Racquel Herrera and her son . `` This case has expanded from murdering random , vulnerable strangers to murdering people he knew , '' he said . Authorities say Ocampo and Herrera 's son , Eder Herrera , are friends .
Itzcoatl Ocampo will be arraigned later on the new charges , the district attorney says . Ocampo , 23 , is accused of the brutal shooting death of Racquel Herrera and her son . Authorities say Ocampo and Herrera 's son , Eder Herrera , are friends .