The persistence of this question is amazing.

Michael says to Tom that he is going to meet all the heads of the five families and then he kills four.

Does this boil down to either

A) the Corleones are one of the five familes
B) he blew off killing one of the heads
C) one of the heads was killed (or died a peaceful, natural) off camera

?


CHRISTIAN
You desecrated a classic film. This is worse than "Godfather III."
GIBSON
Whoa, whoa, hey, whoa! Let's not say things we can't take back.
CHRISTIAN
All right, all right, I'm sorry.