How many murders were committed in Macbeth, and were all of them Macbeth's fault?

*Macbeth kills King Duncan

*Macbeth kills Duncan's two doormen

*Macbeth hires three murderers to kill Banquo

*Macbeth hires the murderers to kill Lady Macduff

*Macbeth hires the murderers to kill Macduff's son along with his other children (unknown how many he had)  (this can be determined because Macduff asks if all his pretty chickens were killed which indicates the presence of more than one child)

*Macbeth also killed Young Siward

*Lady Macbeth killed herself (committed suicide)

*Last but not least Macduff kills Macbeth

So more than 9 murders were committed in Macbeth

and all but two of them were Macbeth's fault (Lady Macbeth's death and Macbeth's own death)