Young Jack Johnson's death

[Palais]

BoxRec Bio had it; "Shot and killed".
The Ring, Feb, 1964, has it; "was fatally stabbed by his step-daughter, Bobby Steptoe at his home in Queens".
This happened sometime around Okt. 1963. Does anyone know the true facts and exact date of his death?

[BoxBuzz]

Had to bump this....just in case any of the new crew can shed light.