<span>1.
</span>I believe the correct answer is that he is referring
that he already killed his family.
In Shakespeare’s drama “Macbeth”, when Macbeth says to
Macduff: "but get thee back, my soul is too much charged with blood of
thine already" he refers on a fact that he sent a hitman to kill Macduff’s
wife and children (thine is archaic form of yours meaning those of his blood or
associated with him).
