After his younger half - brother Richard agreed to testify against him , LeBaron was convicted of killing former cult member Mark Chynoweth in one of what was known as the 4 O'Clock Murders .
LeBaron committed to enforcing his father 's wish to blood atone perceived traitors .
After LeBaron 's younger half - brother Richard agreed to testify against him LeBaron LeBaron was convicted of killing former cult member Mark Chynoweth in one of what was known as the 4 O'Clock Murders .
LeBaron committed to enforcing his father 's wish to blood atone perceived traitors .