Its authority take precedence over the Old Testament (Erubin 21b).
All ultra-orthodox Jews, except the Karaites, seem to believe and live by the Babylonian Talmud.
In reference to the Ortiz family (if the perpetrator was an ultra-orthodox Jew) and to my Related Death video: "No penalty is incurred for indirectly causing one's death" (Sanhedrin 77a, footnote #11)Eddie